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It takes a car going 40 mph 3 seconds to come to a stop. What is the acceleration?

Answer:

a) layer 4

b) layer 1

Explanation:

Older the layer=older the fossils

Newer the layer=newer the fossilss

Answer:

Ammonia has 4 regions of electron density around the central nitrogen atom (3 bonds and one lone pair). These are arranged in a tetrahedral shape. The resulting molecular shape is trigonal pyramidal with H-N-H angles of 106.7°.

Explanation:

Answer:

Option A

Explanation:

The answer is "mass" or option A. It's not option B because volume is the amount of space in a object which is not what the question is asking for. It's also not option C because density goes hand in hand with volume measuring how much space a object takes up, and also density is mass per volume. Leaving only option A, therefore it is your answer.

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C, 0.746 mol Ag.

1 mol Ag = 6.022 x 1023 atoms of Ag -> 4.49 x 1023 atoms of Ag x 1mol Ag/6.022 x 1023 atoms -> 0.746 mol Ag

The moles of Ag that contain 4.49  [tex]\rm \times\;10^2^3[/tex] atoms have been 0.745 moles.

The number of atoms in a mole can be given by the Avagadro number. The Avagadro number has been equal to the number of atoms in a mole of compounds. The Avagadro number has been constant with a value of 6.023 [tex]\rm \times\;10^2^3[/tex].  

6.023 [tex]\rm \times\;10^2^3[/tex] atoms = 1 mole

So, for the given 4.49  [tex]\rm \times\;10^2^3[/tex] atoms:

4.49  [tex]\rm \times\;10^2^3[/tex] atoms = [tex]\rm \dfrac{1}{6.023\;\times\;10^2^3}\;\times\;4.49\;\times\;10^2^3[/tex] moles

4.49  [tex]\rm \times\;10^2^3[/tex] atoms = 0.745 moles.

The moles of Ag that contain 4.49  [tex]\rm \times\;10^2^3[/tex] atoms have been 0.745 moles.

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Answer:

In atomic physics and quantum chemistry, the electron configuration is the arrangement of electrons in an atom, molecule, or other physical structure (e.g., a crystal). ... The concept is also useful for describing the chemical bonds that hold atoms together.

Explanation:

hope this helps :)

Answer:

the last one

27% by 73%

Explanation:

12/44*100 for C

and

16/44*100 for O

Answer:

A

Explanation:

It is the energy molecule.

51.41%

Percentage Composition from Formulas

A more complex example is sucrose (table sugar), which is 42.11% carbon, 6.48% hydrogen, and 51.41% oxygen by mass.

Or

53.3 %

Thus the % composition of glucose by mass is carbon 40.0 % oxygen 53.3 % hydrogen 6.7 % In this way, the % composition by mass of any compound can be calculated provided that its formula is known.

...

What is the percentage composition of sugar?

Element Symbol Mass Percent

Hydrogen H 6.714%

Carbon C 40.001%

Oxygen O 53.285%

Answer:

by using a lemon as a circuit and two positive and negative wires

Explanation:

Divide the distance between the nuclei of the atoms by two if the bond is covalent

Answer:

Explanation:

2 C6H12O2 + 6 O2 -

C = 12

H = 24

O = 16

Answer:

Creep is the imperceptibly slow, steady, downward movement of slope-forming soil or rock. Movement is caused by shear stress sufficient to produce permanent deformation, but too small to produce shear failure. ... Continuous, where shear stress continuously exceeds the strength of the material.

Explanation:

The boiling of pure water has been resulted in the particles gaining energy and moving away from each other. Thus, option A is correct.

The boiling can be described as the conversion of the liquid state to the gaseous state. The molecules in the gaseous space are apart from each other and have no fixed shape.

The pure water has been transferred to the gaseous state at the temperature of 100 degrees celsius. The boiling has been introduced with the addition of the energy.

The water molecules gain energy and start to vibrate. The vibrations have resulted in the change in the change in phase of the liquid with evaporation.

Thus, when pure water boils, the water particles gain energy and move away from each other. Thus option A is correct.

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Answer:

diffusion is the movement of gases from a higher concentration area to a lower concentration area

osmosis is the movement of water molecules from a higher concentration area to a lower concentration area

Answer:

is there an answier choice u have to choose from or no

Explanation:

Answer:

Hair color

Eye color

Birth weight

Explanation:

Explanation:

The formula of nitrogen gas is given as;

          N₂

  Given volume of the gas = 120cm³

Now,

 We need to find the number of molecules and the mass of this compound

Solution:

At STP;

     1 mole of gas occupies a volume of 1dm³ ;

          1000cm³  = 1dm³

          120cm³  gives 0.12dm³;

Now;

              1dm ³ of gas contains 1 mole of substance at STP

             0.12dm³ will contain 0.12mole of nitrogen gas at STP

Mass of N₂ gas = number of moles x molar mass of N₂

    Molar mass of N₂ = 2(14)  = 28g/mol

    Mass of N₂  = 0.12 x 28  = 3.36g

1 mole of a substance contains 6.02 x 10²³ molecules

0.12 mole of N₂ will contain 0.12 x 6.02 x 10²³  = 7.22 x 10²²molecules

The answer option which is not a benefit of using biofuels instead of fossil fuels is: D. Fossil fuels may be used in the production of biofuels.

Renewable energy is also referred to as clean energy and it refers to a type of energy that is generated through natural sources or technology-based processes that are replenished constantly.

Some examples of these natural sources are:

Non-renewable energy refers to a type of energy that is generated through artificial sources and as such cannot be replenished such as coal, natural gas, fossil fuels, petroleum.

In conclusion, fossil fuels cannot be used in the production of biofuels.

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answer below

Explanation:

Warm fronts often bring stormy weather as the warm air mass at the surface rises above the cool air mass, making clouds and storms. warm fronts move more slowly than cold fronts because it is more difficult for the warm air to push the cold, dense air across the Earth's surface.

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Carbon is very important to plants and they obtain the majority of it from the air in the form of carbon dioxide.

In conclusion, carbon is very important to plants as they both use it to get food and to maintain their shape owing to their internal structure being made from carbon.

Find out more about carbon and plants at https://brainly.com/question/19083306.

Answer:

I AM SLEEPY TOO WILL HELP TOMMOROW!

Explanation:

Answer:

There are three measures of retrieval and forgetting: recall, a measure in which an individual brings learned information back to conscious awareness; recognition, a measure in which a person identifies previously learned information; and relearning, a measure in which a person is asked to learn information a second time.

Explanation:

Answer:

Responses may vary but should include some or all of the following information:

There are three measures of retrieval and forgetting: recall, a measure in which an individual brings learned information back to conscious awareness; recognition, a measure in which a person identifies previously learned information; and relearning, a measure in which a person is asked to learn information a second time.

Explanation:

edge

CO2 i think if you understand so mark me as brainliest please.

Answer:

a

Explanation:

because that is a clorune that compose of a single covalent bonds

Answer:

Lead Phosphate

Explanation:

es un cambio químico

Explanation:

Porque es un cambio irreversible y cambia su naturaleza.  

Answer:

Chemical

Explanation:

It includes the breakdown of the food particles by the organisms. It experiences acidic response and the breakdown of food into easier structure.

Answer:The Strong Nuclear Force (also referred to as the strong force) is one of the four basic forces in nature (the others being gravity, the electromagnetic force, and the weak nuclear force). As its name implies, it is the strongest of the four. However, it also has the shortest range, meaning that particles must be extremely close before its effects are felt. Its main job is to hold together the subatomic particles of the nucleus (protons, which carry a positive charge, and neutrons, which carry no charge. These particles are collectively called nucleons). As most people learn in their science education, like charges repel (+ +, or - -), and unlike charges attract (+ -).Hope this helps

Explanation:

Answer:

hope it helps..

Explanation:

The answer is when the waves meet the shore and cause the crest to spill over the trough. This activity creates a back and forth movement of the sand which causes them to settle at a certain area under below the water.