1. The least reactive elements on the periodic table are the _____________ (high number of valence electrons)

2. What makes a reactive metal reactive?

3. What makes a nonreactive noble gas nonreactive?
These are all the questions I need help with (plzzz help mee)

Answers

Answer 1

Explanation:

1. the noble gases because they have a full valence shell

2.the amount of valence electrons

3. they have a full valence shell and dont need any more electrons


Related Questions

When reading, what should you look for first?

Answers

The correct answer is :you should look first to the answers to your own questions.

Where is the DNA located in a eukaryotic cell?

Answers

Answer:

It is located in the nucleus

Explanation:

Answer:

Explanation:

nucleus

The nucleus is particularly important among eukaryotic organelles because it is the location of a cell's DNA.

If you poured the fluids below into a container, which would sink to the bottom?
-water with a density of 1.0 g/cm3
-vegetable oil with a density of 0.91 g/cm3
-honey with a density of 1.36 g/cm3
-air with a density of 0.00013 g/cm3

Answers

Answer:

Honey > Water > oil > air

Explanation:

Heavy density will sink and less heavy density will float

So,

Density of honey is highest so, honey will sink

than,

Density of water is higher so, vegetable oil will float

Density of oil is higher so, air will float

Honey > Water > oil > air

I need help with this fast plzzz

Answers

Answer:

Explanation:

6. He was investigating a mold growing in Staphylococcus culture dishes, that may have been killing bacteria.

7. He hypothesized that the mold was producing a chemical that killed the bacteria.

8. He tested the hypothesis by growing the mold in a broth then transferring it into a bacteria culture.

9. After putting mold into a culture with bacteria in it, the bacteria then died.

10. Antibiotics

Which change to the model would improve its accuracy? A. Move each neutron so it is next to a proton. B. Move the protons and neutrons to a small space in the center. C. Move the protons and electrons to a small space in the center. D. Move all of the particles so that they are evenly spaced.

Answers

Answer:

B

Explanation:

B. Move the protons and neutrons to a small space in the center.

Answer:

B. Move the protons and neutrons to a small space in the center.

Explanation:

is this correct? please help me

Answers

Answer:

It look good to me but I dont know for sure so we will see

Which statement forms part of cell theory?

Answers

Answer:

All living things are made up of cells.

The cell theory is a widely accepted principle of biology. Scientists that contributed to the cell theory include; Theodor Schwann, Matthias Schleiden, and Rudolph Virchow.

The cell theory states that;

All living organisms are made up of cells and they may be unicellular or multicellular.

The cell is the basic structural and functional unit of life.

Cells arise from pre-existing cells.  

What is a gene? What is its purpose?
I

Answers

it is a small section of DNA that contains specific instructions for a specific molecule, usually a protein. it’s purpose is to simply store information.

A mixture can be separated by all of the following EXCEPT
Filtration
Distillation
Sieving
A magnet
Evaporation
All are methods to separate mixtures

Answers

Answer:

All are methods to separate mixtures

Explanation:

A mixture consists of 2 or more substances that are mixed physically but not chemically. Hence, mixtures can be separated by any physical separation means which include but not limited to filtration, distillation, sieving, magnetization, and evaporation.

Filtration is usually used to separate suspended particles in a liquid using a membrane of a filter paper. Distillation is used to separate miscible liquids with varying boiling points by evaporating and condensing them back at their respective boiling points. Sieving is used to separate mixtures with varying particle sizes of individual components.

Magnetization is usually used to separate mixtures with, at least, one component with magnetic property. Evaporation is used to separate dissolved solids from liquids.

Hence, all the methods listed are used to separate mixtures.

similarities between seemingly unrelated organisms can be explained by Darwin's theory that organisms come from common ancestors true or false

Answers

Answer:

false

Explanation:

Answer:

Actually, this is true

Explanation

I just took the test on edu

What causes cells to become specialized??? ✨

Answers

Answer:

Cell differentiation is how generic embryonic cells become specialized cells. This occurs through a process called gene expression. Gene expression is the specific combination of genes that are turned on or off (expressed or repressed), and this is what dictates how a cell functions.

Explanation:

Hope that helped if it did please give me brainiest Thanks :3 <333333

Please help me.
The biomolecule described is a...
A) carbohydrate
B) Protein
C) Lipid
D) monosaccharide​

Answers

Answer:

C

Explanation:

Lipids include various biomolecules whose common property is their insolubility in water. Lipids include a variety of molecular types, such as neutral fats, oils, steroids, and waxes. Unlike other classes of biomolecules, lipids do not form large polymers

Which would best allow a species to survive environmental changes? (8.L.4.2)
similar physical
features
low mutation rate
genetic diversity
small population

Answers

Small population is the answer

Your welcome

According to the Charles darwin theory of natural selection, genetic diversity best allow a species to survive environmental changes.

What is the theory of natural selection?

Natural selection is the procedure via which populations of living organisms acclimate and modify.

Individuals in a population are naturally variable, indicating that they are all distinct in some manner. This divergence means that some individuals have characteristics better suited to the environment than others.

Natural selection leads to evolution.

Thus, genetic diversity best allow a species to survive environmental changes.

To learn more about Natural selection click here:

https://brainly.com/question/2725702

a student needs to find the density of a cube. each side of the cube measures 3 cm and the mass of the cube is 12g. what is the approximate density of the cube?
A. 0.4g/cm3
B. 2.25g/cm3
C. 4.0g/cm3
D. 36g/cm3

Answers

Answer:

Density = 0.4g/cm³

Explanation:

Given

Mass = 12 g

Length = 3 cm

Required

Determine the density.

To calculate density, we need volume.

Volume of a cube is:

Volume = Length ³

Hence:

Volume = (3cm)³

Volume = 27cm³

Density = Mass/Volume

Density = 12/27

Density = 0.4g/cm³ --- Approximated

What is informal science?

Answers

Answer:

Informal science education (ISE) is lifelong learning in science, technology, engineering, and math (STEM) that takes place across a multitude of designed settings and experiences outside of the formal classroom

i hope this help

Explanation:

Informal science education (ISE) is lifelong learning in science, technology, engineering, and math (STEM) that takes place across a multitude of designed settings and experiences outside of the formal classroom.

Why did the narrator use the phrase "fit together like puzzle pieces" to describe how the cells of a developing human
embryo form a human face?

Answers

Answer:

The narrator uses that phrase because the pieces of the skin and face feathers have to come together as one to create a human head so they would be fitting together like puzzle pieces.

Explanation:

Answer:

The human face doesn’t form all at once. It requires many divisions of cells. As the cells divide, they eventually piece together to form a human face.

Explanation:

In what type of climate do trees produce narrower rings?

cool and dry
warm and wet
cool and wet
warm and dry

Answers

The answer is Cool and dry

Answer:

Cool and dry

Explanation: Trees tend to be sensitive to climates, so when the conditions are good the trees grows faster which results in wider growth rings and in poor conditions the tree grows slower which results in it laying down less tissue and therefore a narrower ring size. Drought and a blizzard can also cause narrower ring too. Actually, a cool way to find out if the climate conditions were good is to measure the rings of a tree every month each year. If the rings were consistently the same then you know the climate stayed pretty much the same and etc.

2. Examine the arm bones of the two skeletons. Was Grandmother right- or left-handed? How
about Grandfather?

Answers

Answer:

Grandmother was Left-handed

Explanation:

I can tell this because she had thicker upper and lower arm bones on her left arm, compared to her right arm, telling me her left arm was dominant.

Cohesion produces _____ tension as the water molecules hold tightly together.

Answers

answer: Cohesion produces **surface** tension as the water molecules hold tightly together.


Which type of energy transformation is controlled by chloroplasts?

Answers

photosynthesis! it would be C light to chemical

Lipids are...

A. Protein molecules

B. Similar to water molecules

C. Polar molecules

D. Nonpolar molecules

Answers

Answer:

The answer you are looking for is D.

Explanation:

Lipids are molecules that contain hydrocarbons and make up the building blocks of the structure and function of living cells. (non- polar molecules)

Lipids are fat molecules and are hydrophobic (water repulsive) in nature. Thus, option D is correct.

What are Lipids?

Lipids are important biomolecules and are widely distributed in biological systems. Lipids are organic macromolecules.

Lipids are insoluble in water (polar) and require non-polar solvents mainly hydrocarbons for dissolution like petroleum, ether etc. Thus, non-polar in nature.

Lipids include array of molecules like fats, wax, steroids, vitamins (fat-soluble; A,D, E and K), hormones, oils etc and have diversified functions.

Lipids form an integral part of the cell membrane. It also surrounds membranous structures. It protects the cellular membranes by creating an insulating layer.

Lipids are essential for storing and conserving energy in mammalian body. It helps in metabolism of glucose by converting extra glucose to glycogen in adipose tissues.

Lipids also act as transport molecules in the body. Many lipids function as chemical messengers.

Therefore, Lipids play a pivotal role in living system.

Learn more about Lipids, here:

https://brainly.com/question/3498396

#SPJ2

A white poster board looks white because the light waves are being ______ while a black poster board looks black because the light waves are being ________


A. refracted vs diffracted
B. absorbed vs reflected
C. transmitted vs reflected
D. reflected vs absorbed

Answers

Answer:

The answer is D. Reflected vs Absorbed

Explanation:

Black shirts get so hot because it's absorbing all light whereas white is colder because it's reflecting all light

Please mark Brainliest

Answer:

D. Reflected vs Absorbed

Explanation:

This organelle modifies and labels proteins so they will be working properly and arrive at the correct destinations? so whats the answer?

Answers

Answer:

[tex]\boxed {\tt Golgi \ apparatus}[/tex]

Explanation:

After a protein is produced on a ribosome it is sent to the endoplasmic reticulum. Here, proteins fold and then are sent to the golgi apparatus.

In this organelle, proteins are modified and labeled. Sugar groups (modifications ) and tags/signals (labels) can be added. From the golgi apparatus they are sent to different destinations or secreted.

So, the correct answer is Golgi apparatus.

Golgi apparatus

The Golgi apparatus, which is usually situated near the nucleus, receives proteins and lipids from the ER, modifies them, and then dispatches them to other destinations in the cell. Transport from the ER to the Golgi apparatus—and the Golgi can either move onward through the Golgi stack or, if they contain an ER retention signal, be returned to the ER; proteins exiting from the Golgi are sorted according to whether they are destined for lysosomes (via endosomes) or for the cell surface.

Where does the water enter the plant in photosynthesis?

Answers

Answer:

The water needed for photosynthesis is absorbed through the roots and transported through tubes to the leaf. The roots have a type of cell called a root hair cell. These project out from the root into the soil, and have a big surface area and thin walls. This lets water pass into them easily.

Explanation:

Hope this helps

Which type(s) of muscle tissue cells are organized into sarcomeres?
skeletal
cardiac
smooth

Answers

skeletal and cardiac

You are discussing earthquakes with your friends. One friend states that a magnitude 8.0 earthquake is twice as powerful as a 4.0 magnitude earthquake. Another friend states that it is actually 40 times more powerful. Another friend claims that it is 10,000 times more powerful. Which friend is more correct? Explain.

Answers

Answer:

The friend that says 8.0 is twice as powerful as a 4.0. Hope this helps

PLEASE HELP :) What is the difference between Gross Primary Production and Net primary production in simple terms? (If you could also provide an example I would really appreciate it.) Thank you for your time!

Answers

Answer:

Gross primary production (GPP) is the total rate at which material is produced and net primary production (NPP) is the rate at which material is accumulated in excess of respiration. In other words, NPP is GPP minus respiration. ... Net primary production is directly related to ecosystem conditions.

How will wavelength affect the light-dependent reaction?

Answers

Answer:

The longer the wavelength, the less energy is carried.

Explanation:

Short, tight waves carry the most energy.

Under certain external conditions, a person will perspire a great deal. For which internal condition does this response
primarily provide homeostasis?
water balance
electrolyte balance
temperature balance
energy balance

Answers

Answer:

Perspiration provides homeostasis to the internal condition of temperature balance.

Explanation:

Perspiration occurs as a consequence of the increase in environmental temperature, which at the same time produces an increase in body temperature.

The high body temperature produces a stimulus that reaches the thermoregulation center of the central nervous system, which produces a response transmitted through the sympathetic nervous system, causing the sweat glands to increase the production of sweat.

The sweat that covers the skin is capable of acting as a physical agent to lower the temperature, a mechanism of thermal regulation that contributes to temperature balance.

The other options are not correct because:

Water and electrolyte balance is done at the renal level. The energy balance depends on the food intake and the amount of energy used.

Answer:

temperature balance

Explanation:

Cytoskeleton has 3 functions?


Genetic information, color, movement

Gives cells their specific shape, severs as tracks, enables movement

It has NO function

Energy, shape and color

Answers

Answer:

I believe the answer is gives cells their specific shape, severs as tracks, enables movement

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