Answer:
flifeee
Explanation:qaSZDFVCVB CDSEW34EDGFBFF
balancing skeleton equation can someone help me with this
When any chemical equation is not balanced then that is known as skeletal chemical equation. We need to balance it because as we know that mass can neither be created nor be distroyed and also the number of atoms on the reactant side should always be equal to the compounds on the product side .
A plant would not be able to complete photosynthesis without
OA. glucose.
ОВ.
oxygen.
OC.
food.
OD.
water.
Answer:
Glucose
Explanation:
It's the food plants need to complete photosynthesis.
please help this is due today
Which term refers to the ability to do work?
energy
power
force
motion
Answer:
Energy
Explanation:
Answer: energy
Explanation:just learned it last month
Help as fast possible I’ll mark you bbrainlist
Answer:
the farther they are the longer there cycle is. closer they are shorter time.
Please help! Will mark brainliest!
I’m doing exams please hurry!
The diagram below shows four altitude locations on a mountain.
Which of these locations is most likely to experience the least amount of snow?
Location D
Location C
Location A
Location B
According to the diagram shown, location A will receive least amount of snow in the form of precipitation.
What is precipitation?
Precipitation is defined as any liquid or frozen water which forms in the atmosphere and then gets received on Earth.It is one of the most important steps of the water cycle.
Precipitation takes place in form of clouds when water vapor gets accumulated in clouds and they get bigger and heavy, when the clouds become heavy enough they fall to the land in the form of rain.If a cloud is present at higher altitudes , the water present in the clouds freezes and fall to the ground in form of snow,hail.
Precipitation occurs always in case of fresh water because the sea salt does not evaporate with the water.The different types of precipitation are rain, drizzle,snow,snow hail,etc.
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The statue of Liberty is made out of copper metal. When it was first constructed, the color of the copper metal was bright burnt orange.
Over time, however, it slowly developed a green color as it was exposed to air. What happened to the statue of liberty?
Explanation:
The green color of the Statue of Liberty was due to the outer surface covered with hundreds of thin copper sheets. Copper reacts with the air to form a patina or verdigis
Alkaline earth metals with the most electronegativity
Answer:
beryllium
Explanation:
electronegavity 1.57
Which phrase best describes speed?
A. Rate of change in velocity.
B. Rate of change in position to motion.
C. Total change in position as described by distance and direction.
D. Rate of motion.
Answer:
D
Explanation:
Rate of motion
What is the random mixing of gas molecules called?
O A. Volume
O B. Temperature
C. Diffusion
O D. Pressure
Answer:
C. Diffusion
it is called diffusion
The model represents how electromagnetic radiation transmits energy.
What does the model show?
A. Many light waves traveling away from a source
O B. Two light waves traveling perpendicularly to a source
C. Several light waves circling a source
D. A single light wave traveling away from a source.
The model represents where electromagnetic radiation transmits energy should be option d. A single light wave traveling away from a source.
What is electromagnetic radiation?It is the energy that should be transmitted at the fixed velocity via the sinusoidally that varied from the electric and magnetic fields.
Here the frequency of variation of the energy should be presented by the Greek letter ν.
Hence, the option d is correct.
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The model depicts the transmission of energy by electromagnetic radiation. The model depicts a single light wave departing from a source.
What describes the light as electromagnetic waves?Light as a wave: Light is a type of electromagnetic wave that can be represented mathematically (described). A shifting magnetic field is produced by a shifting electric field, according to this paradigm. Light is produced when the electric field changes as a result of the changing magnetic field.Light can be thought of as a wave. Light is a type of electromagnetic wave. A fluctuating electric field, according to this hypothesis, generates a fluctuating magnetic field. The interaction of a changing magnetic field with a changing electric field produces light. When charged particles, such as electrons and protons, move, they generate electromagnetic fields, which transport the type of energy known as electromagnetic radiation, or light.To Learn more About electromagnetic radiation, Refer:
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what is the mass of 1.46 mole of zinc?
Answer:Zinc grams to moles
Molar mass of Zinc(Zn) = 65.38 g/mol. This means 1 mol of Zn is 65.38g . To find the number of moles of Zn, we divide the given amount of Zn by the molar mass of Zn. Hence, 1.34 g of Zn contains 0.020 moles of Zinc
Explanation:
1 mole is equal to 6.023 × 10 ²³ molecules. The mass of 1.46 mole of zinc is 1.34 grams.
What do you mean by mole ?The term mole is defined as the amount of substance of a system which contains as many elementary entities.
The mole concept can be used to convert between mass and number of particles.
One mole of any substance is equal to 6.023 × 10²³ units of that substance such as atoms, molecules, or ions. The number 6.023 × 10²³ is called as Avogadro's number or Avogadro's constant.
Molar mass of Zinc(Zn) = 65.38 g/mol.
This means 1 mol of Zn = 65.38g .
To calculate the number of moles of Zn, we divide the given amount of Zn by the molar mass of Zn.
Hence, 1.34 g of Zn contains 0.020 moles of Zinc.
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Which organelle captures sunlight and helps in food synthesis?
Answer:
Chloroplasts! :)
Explanation:
Hope this helps
7. A gas ______.
A. has a definite shape but no definite volume
B. has a definite volume but no definite shape
C. has no definite shape or volume
D. has definite shape and volume
Answer:
C
Explanation:
A gas is a state of matter that has no fixed shape and no fixed volume gases have lower density than other states of matter such as solids and liquids.
can someone please help with this ASAP :):):):):):):):):):):):):):)
Answer:
u just put T and t in all of the boxes
Explanation:
like this
T t
T t
and see how many times you get a dominant one which is 2 T T
i dont know if u understand I took this a long time ago i forgot my bad if it's hard to understand
will the mass stay the same everywhere that an object goes?
Answer:
The mass of a given object is the same everywhere, but its weight can change. We use balances to measure weights and masses.
Answer:
yes its weight that changes.
PLEASE HELP QUICK!!
Any form of energy can be transformed into ________________ energy.
A. radiant
B. chemical
C. electrical
D. thermal
Answer:
D
Explanation:
My logic: Electricity produces heat, chemical reactions produce heat. And so on.
Answer: A:Radition
Explanation:
which is a physical property of matter?
a.corrosion
b.flammability
c.oxidation
d.volume
plzz help
Answer:
D
Explanation:
Answer:
volume
Explanation:
Question 16 (6 points)
Match the following elements with the correct answers.
Column A
Column B
a Francium
1.
Which element has the largest electronegativity?
2
Which element has the biggest atomic radius?
b. Nonmetals
3.
C Fluorine
4
From which types of elements is it more difficult
to pull away a valence electron?
Which type of elements has lower ionization
energy?
What element has an oxidation number of +3?
d. Helium
5.
e. Metals
6.
What element has 2 valence electrons?
f. Aluminum
Answer:
1.) Fluorine
2.) Francium
3.) Nonmetals
4.) Metals
5.) Aluminum
6.) Helium
Explanation:
How many moles of carbon are there in 5 g of carbon?
Answer:
0.416666667
Explanation:
number of moles= mass of sample ÷ molar mass
=5÷12
=0.41666667
The number of moles of carbon are there in 5 gram of carbon is 0.41 moles.
How do we calculate moles from mass?Moles of any substance will be calculated by using the mass by following the below equation:
n = W/M, where
W = given mass of carbon = 5g
M = molar mass of carbon = 12g/mol
On putting values, we get
n = 5 / 12 = 0.41 moles
Hence required moles of carbon is 0.41 moles.
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You observe an unknown substance under a microscope. You notice that the molecules are tightly packed together and not moving. Based on this observation, what phase of matter is this substance likely in?
Your answer:
a. Solid
b. Liquid
c. Gas
d. Plasma
Answer:
The answer would be A because they are tightly packed.
What effects do winds patterns have on climate
Prevailing winds bring air from one type of climate to another. For example, warm winds that travel over water tend to collect moisture as they travel; the water vapor in the air will condense as it moves into colder climates, which is why temperate coastal areas often receive heavy rainfall.
Hope it Helps! T^T
The alkaline earth metal family element that has the largest atomic radius can be found in which period on the periodic table?
a)
7
b)
1
c)
2
d)
6
Answer:
c. 2
Explanation:
The alkaline earth family is the second most reactive group, and it's elements can't be found free in nature. They are called "alkaline" earth metals because they form "alkaline" solutions, hydroxides, when they react with water
Due at 11:59
.................................
Answer:
1 Covalent BondExplanation:
__________________________________________________________
According to Answers,
There is one covalent bond in a chlorine molecule. The formula for a chlorine molecule is Cl2, which means that there are two chlorine atoms bonded together per molecule. The structural formula for a molecule of chlorine is Cl-Cl, in which the line in between the symbols for the two atoms represents a single covalent bond.
__________________________________________________________
Hope this helps! <3
__________________________________________________________
What is magnetic force ? How is the this force
4 Sી ભIndSCO
Answer:
Magnetic force, attraction or repulsion that arises between electrically charged particles because of their motion. ... The magnetic force between two moving charges may be described as the effect exerted upon either charge by a magnetic field created by the other.
Explanation:
brainlest pls
[tex] \huge \boxed{\mathbb{QUESTION} \downarrow}[/tex]
What's magnetic force ?[tex] \huge \boxed{\mathfrak{Answer} \downarrow}[/tex]
Magnetic force is referred to as the force/phenomenon which is exerted by a magnet when they attract or repel each other through the poles. It's produced by an electric charge.There are 2 poles ⇨ i) North Pole & ii) South Pole.The like pole repel each other while the different poles attract each other. Magnetism is also known as magnetism or magnetic attraction.Assignment Summary For this assignment, you will construct a scientific model of the water cycle to show how water is recycled through an ecosystem. Once you have drawn your model on a poster board, you will write one to two paragraphs explaining how water is transferred within and between organisms and the environment. Background Information Water is a very important compound. Organisms need water to carry out life-maintaining processes such as growth and development. Without water, living things will not survive. Water continually flows among the atmosphere, land, water, and living organisms. This process, called the water cycle, allows water to be recycled as it moves through Earth’s spheres. Materials Assignment Instructions Step 1: For this project, you are expected to submit the following: 1. Your model of the water cycle 2. One to two typewritten paragraphs describing the water cycle Step 2: Prepare for the project. a) Read through the guide before you begin so you know the expectations of this project. Pay particular attention to the instructions you need to follow to create a model on your poster board. b) If anything is not clear to you, be sure to ask your teacher. Step 3: Gather materials for the model. a) Start with a blank poster board. Be sure to put your name on it. b) You may either draw the parts of the water cycle or print images to construct a model on your poster board. Gather any drawing tools that you will need, or print any images you want to use. Step 4: Create a model of the water cycle. a) Your model should include bodies of water such as lakes and oceans, organisms, air, and land. b) Draw arrows indicating how water moves within an ecosystem and between organisms and their environment. Be sure to include the Sun and gravity in your model. c) Include short phrases on your poster that summarize what occurs at each stage of the water cycle Step 5: Write a paragraph describing the water cycle. a) Type one to two paragraphs describing the full water cycle. Be sure to use full sentences and proper grammar.
Answer:
Explanation:
Earth's water is always in movement, and the natural water cycle, also known as the hydrologic cycle, describes the continuous movement of water on, above, and below the surface of the Earth. Water is always changing states between liquid, vapor, and ice, with these processes happening in the blink of an eye and over millions of years.
edge 22
I need someone who can help me
Answer:
what u need help with bro
Answer:
8 protons, 10 neutrons, 8 electrons
Explanation:
Which of the following is a stable ion that exists under ordinary conditions?
N3-
Al+
Li2+
F2-
Answer:
Hmm 65
Explanation:
1. 2g of calcium carbonate was added to 40 cm3 of hydrochloric acid of concentration 2 moldm-3.
Write a balanced equation for the reaction. (2 mrks)
The balanced equation :
CaCO₃ (s) + 2HCl (aq) → CaCl₂ (aq) + H₂O (l) + CO₂ (g)
Further explanationEqualization of chemical reaction equations can be done using variables. Steps in equalizing the reaction equation:
1. gives a coefficient on substances involved in the equation of reaction such as a, b, or c etc.
2. make an equation based on the similarity of the number of atoms where the number of atoms = coefficient × index between reactant and product
3. Select the coefficient of the substance with the most complex chemical formula equal to 1
CaCO₃ (s) + HCl (aq) → CaCl₂ (aq) + H₂O (l) + CO₂ (g)
Give coefficient :
CaCO₃ (s) + aHCl (aq) → bCaCl₂ (aq) + cH₂O (l) + dCO₂ (g)
Ca, left=1, right=b⇒b=1
C, left=1, right=d⇒d=1
O, left=3, right=c+2d⇒3=c+2d⇒3=c+2.1⇒c=1
H, left=a, right=2c⇒a=2c⇒a=2.1⇒a=2
the equation becomes :
CaCO₃ (s) + 2HCl (aq) → CaCl₂ (aq) + H₂O (l) + CO₂ (g)
Which of Earth's Spheres take up most of the Earth's surface?
Hydrosphere
atmosphere
cryosphere
geosphere