is this physical or chemical change Using a mortar and pestle, you grind up a substance into a fine powder.

Answers

Answer 1

Answer:

Physical Change

Explanation:

It's a physical change because nothing is happening to the substance, you're just change the shape/form.


Related Questions

Which of these are the most common in a cell? sugar? protein? fat? or water? also im stupid and dont know what class it would be in- all i know is that its in science

Answers

Answer:

i would say protein and fat

Explanation:

How many atoms in all are in a molecule of serotonin?

Answers

Answer:

10 carbon (black), 12 hydrogen atoms (white), 2 nitrogen atoms (blue), 1 oxygen atom (red)

Explanation: Serotonin is a molecole composed of all of these atoms

A molecule of serotonin has 25 atoms in total, and these atoms are arranged in a specific pattern to give serotonin its unique chemical and biological properties.

What is serotonin?

Serotonin is a neurotransmitter, which means it is a chemical that is used by the nervous system to transmit signals between nerve cells. It is also a hormone that regulates various physiological processes in the body. The chemical formula for serotonin is [tex]C_1_0H_1_2N_2O,[/tex] which indicates that it contains 10 carbon atoms, 12 hydrogen atoms, 2 nitrogen atoms, and 1 oxygen atom. The molecule of serotonin consists of a benzene ring with two substituents: an amino group and a hydroxyl group (-OH). The amino group and hydroxyl group are attached to adjacent carbon atoms in the benzene ring, and the nitrogen atom is attached to one of the carbon atoms in the amino group.

Hence, a molecule of serotonin has 25 atoms in total, and these atoms are arranged in a specific pattern to give serotonin its unique chemical and biological properties.

Learn more about serotonin here.

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what would happen is there was a change in the DNA ?

Answers

Answer: B) the protein would also change

DNA is a dynamic and adaptable molecule. As such, the nucleotide sequences found within it are subject to change as the result of a phenomenon called mutation. Depending on how a particular mutation modifies an organism's genetic makeup, it can prove harmless, helpful, or even hurtful. Sometimes, a mutation may even cause dramatic changes in the physiology of an affected organism. Of course, in order to better understand the varying effects of mutations, it is first necessary to understand what mutations are and how they occur.

Which protects nerve endings at the ends of fingers and toes?

joints
hair
nails
muscle

Answers

Answer:

nails ez pe ze

Explanation:

edg 2020 and i smart

Answer: C

Explanation:

Pleas help help needed
An analogy makes a comparison between objects based on their similar qualities. Cassidy wanted to create an analogy for the motion of atoms in solids, liquids, and gases, so she compared them to marbles in a tray.


Which best compares the phases of matter to marbles in a tray?


A solid is like the tray being shaken and the marbles moving around it, and a liquid is like the tray being shaken slowly and all the marbles moving in their positions.

A solid is like the tray being shaken slowly and all the marbles moving in their positions, a liquid is like the tray being shaken and the marbles moving around it, and a gas is like the tray being shaken hard and the marbles moving vigorously around it.

A gas is like the tray being shaken slowly and all the marbles moving in their positions, and a solid is like the tray being shaken hard and the marbles moving vigorously around it.

A liquid is like the tray being shaken hard and the marbles moving vigorously around it, and a gas is

Answers

Answer:

A solid is like the tray being shaken slowly and all the marbles moving in their positions, a liquid is like the tray being shaken and the marbles moving around it, and a gas is like the tray being shaken hard and the marbles moving vigorously around it.

Answer:

B). A solid is like the tray being shaken slowly and all the marbles moving in their positions, a liquid is like the tray being shaken and the marbles moving around it, and a gas is like the tray being shaken hard and the marbles moving vigorously around it.

Explanation:

What takes place in the mitochondria matrix?

Answers

Answer:

In the mitochondrion, the matrix is the space within the inner membrane. ... The enzymes in the matrix facilitate reactions responsible for the production of ATP, such as the citric acid cycle, oxidative phosphorylation, oxidation of pyruvate, and the beta oxidation of fatty acids.

Explanation:

In the mitochondrion, the matrix is the space within the inner membrane. ... The enzymes in the matrix facilitate reactions responsible for the production of ATP, such as the citric acid cycle, oxidative phosphorylation, oxidation of pyruvate, and the beta oxidation of fatty acids.

Briefly summarize the difference between Exergonic reactions and endergonic reactions

Answers

Answer:

Exergonic and endergonic reactions result in changes in Gibbs free energy. In exergonic reaction the free energy of the products is lower than that of the reactants; meanwhile, in endergonic the free energy of the products is higher than that of the reactants.

Explanation:

Exergonic and endergonic reactions result in changes in Gibbs free energy. In exergonic reaction the free energy of the products is lower than that of the reactants; meanwhile, in endergonic the free energy of the products is higher than that of the reactants. I hope this is helpful.

when does seeds of plants for plants aerobic respiration​ please give answer in one sentence it is urgent i will mark brainliest

Answers

Answer: Seeds of plants only perform anaerobic respiration in extreme conditions. usually it's done when there is a lack of oxygen or no oxygen available at all.

A herniated disc is also sometimes referred to as:
A. Ruptured disc
B. Bulging disc
C. Slipped disc
D. All of the above​

Answers

Explanation:

If the spinal column tears open and the discs protrude outward, they can press on, or “pinch,” nearby spinal nerves. This is known as a ruptured, herniated, or slipped disc.

i believe it could be all of the above

Identify minerals extracted in Haiti
and describe what is done with
them.

Answers

Answer: Haiti is mainly know for their minerals! the main minerals extracted are: cooper, silver, and GOLD. Haiti has many many gold farms, markets, etc. HOWEVER this is a very poor area, as people here live off of only about 2 dollars per day. They could take this wealth and put it towards the people, roads, and construction, as they had an earthquake that killed many many people, and destroyed much. If you mean what they do with gold, they take the gold from farms, and mine it underground. They then sell it for money as this is a poor area as said before!

Explanation: I hope this helps! please let me know and have a great night! :)

3. Draw a circle on a flat surface. Look at it from the side. What do
you think you'll see?

circle

egg shape

ellipse

bean shape
4. Which of the following
would you be able to use to make a specific ellipse?

lengths of major and minor axes

positions of the two foci

positions of the two foci and the center

the circumference and center

Answers

We will see an ellipse when we see a circle drawn on the flat surface from the side

What is produced when an atom gains an electron?

Answers

A ion is produced when an atom gains an electron

Compare fossil fuels and
biomass as energy resources.

Answers

Answer:

Compare fossil fuels and biomass as energy resources. Both fossil fuels and biomass come from organic matter, are burned to generate energy, and cause air pollution when used. Biomass is renewable, whereas fossil fuels are nonrenewable.

Explanation:

A gas station has been robbed. The crime scene investigators arrived at the crime scene with forensic lamps to seek latent fingerprints of the
perpetrator. Which technique will they use to find latent fingerprints?
A absorption technique
B. Infrared technique
C fluorescence technique
D. oblique technique

Answers

Fluorescence technique

Answer:

Fluorescence technique

Explanation:

Which of the following processes produces the most ATP? a aerobic respiration b glycolysis c alcoholic fermentation d lactic acid fermentation

Answers

Answer:

b) glycolysis

Explanation:

Up to 36 ATP can be produced from one glucose molecule through aerobic reactions. Therefore, option (A) is correct.

What is aerobic respiration?

Aerobic respiration supplies energy to fuel all cellular functions. The reactions result in the production of ATP, which can then be put to use to power other life-sustaining processes, such as growth, repair, and maintenance.

The release of energy that was stored in carbohydrates and lipids during photosynthesis and the subsequent availability of that energy to living organisms is the purpose of the series of enzyme-controlled events known as aerobic respiration.

Glycolysis, the Krebs cycle and respiratory electron transport contribute to the production of 36 ATP for every molecule of glucose that is used up during aerobic cell respiration.

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James is conducting an experiment to test the effect of insecticides on frogs. He gives one group of frogs 10 cc of the insecticide and 0 cc of the insecticide to the other group of frogs. After 5 days, the effects of the insecticide are collected. what is the independent variable and dependent variable

Answers

Answer:

Independent variable: amount of insecticide

Dependent variable: effects of insecticide on frogs

Explanation:

Dependent variable in a research experiment, is the variable that is being studied, tested and measured by the researcher, while the independent variable is the variable that causes the dependent variable to change, when it is varied.

In this case, the amount of insecticides that is varied in quantity, is the independent variable that the researcher manipulates, while the independent variable is the effects caused by these varied amount of insecticide on frogs, which is tested and measured.

Perform online research to learn about an invasive species and its new environment. Discuss how the species was introduced to the environment, where it is invasive, what advantages the species has over native species in this environment, and what problems the species poses to the environment.

Answers

Answer:

(Answers may vary.)

Farmers brought nutria, a type of large rodents, from South America to North America in the 1990s. They wanted to raise the rodents for their fur. Some of these rodents escaped into the wild and became a major pest in the Gulf Coast and Chesapeake Bay regions. Grasses and shrubs in these regions are vital, because they provide food and shelter for many species. They also help in preventing soil erosion. The nutria are eating up all the grasses and shrubs, which affects the food cycles of these regions. The entire ecosystems are being disrupted.

Moreover, nutria pose a direct threat to humans. These rodents are an effective vector for carrying parasites that can cause disease in humans. They also damage property. The burrows created by nutria can damage dams and building foundations as well as cause erosion near streams and lakes.

Explanation:

the answer from pluto/edmentum

Answer:

The apple snail is a native species of Argentina, Bolivia, Brazil, Paraguay, and Uruguay. Southeast Asia legally imported this alien species to use it as a protein source. Later, this species was brought to places like Hawaii as a source of food.

Like most, if not all, invasive species, the apple snail outcompetes native species for resources. This is because it reproduces rapidly (laying hundreds of eggs every few weeks) and lacks predators. As a result, the snails spread rapidly to aquatic biomes and modify the natural balance of aquatic ecosystems.

Explanation: plato edmentum (answers may vary)

PLS help me to get brainliest

Answers

I believe its d, it cannot represent a living cell, since a true living cell is three dimensional.

This is for bio okay??

Answers

Answer:

polution from driving around, the clotehs and products we use had to mde from bad stuff, and all our garbage.

Explanation:

a food web is a diagram of feeding relationships that includes multiple intersecting food___. (blank)

Answers

Answer:

chains

Explanation:

a food web is a diagram of feeding relationships that includes many intersecting food chains.


A form of simple cittusion is Osmosis. In which direction will water flow in the process of Osmosis?

A. Water will flow from low concentration to higher concentration

B. Water will flow with the solutes, against the concentration gradient

C. Water will flow towards the solutes (.e. toward the higher salt concentration)

D. Water will flow away from the solutes, with the concentration gradient

Answers

Answer: D

Explanation:

osmosis, water always moves from an area of higher water concentration to one of lower concentration.

Which of the following describes an example of molecular movement across a membrane
through active transport?
O Channel proteins bind with extracellular solutes and release them inside the cell.
O Hydrocarbons enter the cell by dissolving in the lipid bilayer of the membrane.
Proton pumps move hydrogen ions out of the cell against a concentration gradient.
O Vesicles carrying waste products fuse with the membrane during endocytosis.

Answers

Hydrocarbons enter the cell by dissolving in the lipid bilayer of the membrane.

The following information should be considered;

The example of molecular movement across a membrane should be the Hydrocarbons that should enter the cell.It should be entered via dissolving the lipid bilayer.

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PLEAE HELP ME ASAP!! I need help

Answers

Answer:

3

i think

Explanation:

You want to know if feeding rabbits corn is better for their growth than the normalfed pellets that they eat. You have 20 rabbits on which to perform your experiment
what is the iv and dv for this​

Answers

Answer:

The IV is the corn because that is what you are changing.

The DV is the growth of the rabbit because that is what you are measuring.

identify the biomes on the map and then answer the questions that follow which biome has the warmest temperatures and the most rainfall

Answers

There is no map of questions to look at but the tropical rainforest and tropical savannah biomes are both warm and have the most rainfall

Answer:

tropical rain forest

Explanation:

it has ran in the name

What do bacteria have in common with the cells of other living organisms?

Answers

Answer:

Bacteria have cytoplasm and chromosomes which are common with the cells of other living organisms. Some bacteria have whip-like which is flagellum which helps bacteria cells have prokaryotes which mean the DNA is not being held with the nucleus like cells of plants and animals.

Explanation:

guys please help
Question 11 Part A)

Make sure to sure me your work.

Answers

Answer:

95%

Explanation:

190 is 95% of 200.

The comparison of input versus output is also 95%

A red blood cell is placed in a 0.9% salt solution. If the cell remains at equilibrium, neither gaining nor losing water,
identify the type of solution the cell has been placed in.
A)
Hypertonic
B)
Isotonic
Hypotonic
D)
Hydrostatic

Answers

Answer:

g

Explanation:

Which student, if either, is most correct in their claim regarding the ATP/ADP cycle?

A. Brianna's claim is correct - the removal of a phosphate group (or the breaking of
a chemical bond) supplies a great deal of energy from the cell and the ATP/ADP process is not continuous.

B. Neither student is completely correct. Oscar is correct in that this process is a
cycle and Brianna is correct in that the removal of the phosphate group supplies the most energy

C. Oscar's claim is correct - the addition of a phosphate group (or the making of a
chemical bond) supplies a great deal of energy from the cell and the ATP/ADP
cycle is continuous.

D. Both students are correct - Oscar's claim is correct for the process of
photosynthesis and Brianna's claim is correct for the process of cellular
respiration.

Answers

Answer:

A

Explanation:

because it is the the ATP/ ADP does not process which is true.

10.
5. Which of the following would you not find in an
animal cell?
a. Phospholipids
b. Endoplasmic reticulum
c. Nucleoid
d. Mitochondria

Answers

Phospholipids are not in the animal cell
The answer is C. Plant cells only have there genetic material in a nucleoid region while animal cells have a membrane bound nucleus
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why do neutral elements form ions ? Strong Metals Inc. purchased a new stamping machine at the beginning of the year at a cost of $1,567,500. The estimated residual value was $82,500. Assume that the estimated useful life was five years and the estimated productive life of the machine was 300,000 units. Actual annual production was as follows: Year Units 1 70,000 2 67,000 3 50,000 4 73,000 5 40,000 Required: 1. Complete a separate depreciation schedule for each of the alternative methods. a. Straight-line. b. Units-of-production. c. Double-declining-balance. Ranny is buying presents for members of his family. He wants to spend $10 less on his brother than he spends on his sister, and six dollars more than twice the amount he spends on his sister on his mother. If Ranny has $100 to spend, how much does he intend to spend on his brother? Please answer with a numerical explanation. No other explanation required. In addition to being an artist, Brunelleschi was also a(n) O A. patron O B. art critic O c. engineer O D. religious leader Question 3Which statement below is correct?A. Photosynthesis produces ATP, and cellular respiration requires lightenergyB. Photosynthesis produces carbon dioxide, and cellular respirationproduces sugars.C. Photosynthesis and cellular respiration occur in both plant andanimal cells.D. Photosynthesis produces the oxygen required for cellular respiration. Summarize the process of sexual reproduction and explain how variations of inherited traits can increase or decrease an organisms chance of survival.Please sum it up in 3 sentences or more. You can make groups of 3, 4, or 9 pencils with none left over. What is smallest number of pencils you must have to make these groups? Which coordinate pair is a solution of the linearequation below?-X + 3y = 21Click on the correct answer.(3,-8)(-3,8)(3,8) You and some friends visit the Florida State Fair and decide to play a game. To play the game you must slide a metal hockey-type puck up a wooden ramp so that it drops through a hole at the top of the ramp. Your prize, if you win, is a large, stuffed gorilla. You realize the secret to winning is giving the puck just enough velocity at the bottom of the ramp to make it to the hole. You estimate the distance from the bottom of the ramp to the hole at about 3 m, and the ramp appears to be inclined with an angle of 10o from the horizontal. You just got out of physics class and recall the coefficient of static friction between steel and wood is 0.1 and the coefficient of kinetic friction between steel and wood is 0.08. The mass of the puck is about 1 kg. You decide to impress your friends by sliding the puck at the precise speed on the first try so as to land it in the hole. You slide the puck at 2.0 m/sec. Do you win the stuffed poodle? Let g = 10 m/s2. Note: A slightly too hard throw will win since your aim is so good the puck would drop in the hole. or0 What do you like? Answer the following questions using the verb gustar.Modelo: Te gusta el caf? S, me gusta el caf. No, no me gusta el caf.1. Te gusta el pan?2. Te gusta la sopa?3. Te gusta el desayuno?4. Te gusta la fruta?5. Te gusta el sndwich de jamn y queso? If a polygon is a pentagon, then it has 5 sides hypothesis conclusion Cool colors make us think of ________, ________, or ________.heat, sunshine, or firecold, water, or the skygrass, stop signs, or lavaspring, summer, or fall Which phase change results in an increase in entropy?1.12(9) - 12(s)2.CH2(g) - CH403.Br2(1) - Br2(g)4.H20(1) - H20(s) 4t4t4th4tth4tnrtbnrgbt4gte What does the Merge and Center feature do? Check all that apply.O adds borders to a group of cells in a rangeO centers an image in the middle of a worksheetO combines multiple cells into a single cellO centers the alignment of text in the cellThe answer is the last 2 this question just isn't on brainly so I thought i'd add it 7) Order the numbers from least to greatest.A. 6.66B. 6.07C. 7D. 6.32 This represents both the height of action and the turning point where a change in the story takes place, and the conflicts can wind down. In February, you have a balance of $135 in your bank account. Each month you deposit $45. Write an equation to describe the situation. 2x + 7 = 13Please help HELP ASAPPPPP mL ABC=117 -> Find mL CBD