CHEMISTRY HIGH SCHOOL

The availability of phosphorus is different that that of carbon and nitrogen because it is found mostly in the

Answers

Answer 1
Answer:

Answer:

atmosphere

Explanation:
Answer 2
Answer:

The answer is lithosphere. The availability of phosphorus is different that that of carbon and nitrogen because it is found mostly in the lithosphere.

Related Questions

14 Which phrase describes a molecule of CH4, in terms of molecular polarity and distribution of charge?(1) polar with an asymmetrical distribution of charge(2) polar with a symmetrical distribution of charge(3) nonpolar with an asymmetrical distribl1tion of charge(4) nonpolar with a symmetrical distribution of charge
What is a balanced equation for the neutralization of these two compounds? HCl Ca(OH)2
How does a lithium cation compare to a lithium atom? The cation is larger. The cation has the same radius. The cation is smaller. The cation has the same charge
A gas contains a mixture of NH3(g) and N2H4(g), both of which react with O2(g) to form NO2(g) and H2O(g). The gaseous mixture (with an initial mass of 61.00 g) is reacted with 10.00 moles O2, and after the reaction is complete, 4.062 moles O2 remains. Calculate themass percent of N2H4(g) in the original gaseous mixture.
What is used up in and stops a chemical reaction?

Who is regarded as father of modern chemistry ?

Answers

Antoine Lavoisier is considered the father of modern chemistry. He was a French nobleman who recognized and named oxygen and isolated the major components of air.

A rock has 12.5 percent of its original amount of potassium-40 remaining in it; potassium-40 has a half-life of 1.25 billion years. How long ago was the rock formed?a) 1.25 billion years ago

b) 2.5 billion years ago

c) 3.75 billion years ago

d) 5 billion years ago

Answers

A rock has 12.5 percent of its original amount of potassium-40 remaining in it; potassium-40 has a half-life of 1.25 billion years. 3.75 billion years ago was the rock formed. the answer is letter C

Answer:

the answer is b) 2.5 billion years.  if its half life is 1.25 billion years and there is only 25% of the element remaining, you would take 1.25 billion and multiply it by two to get 2.5 billion.

Which of the following is the most recent addition to the accepted model of the atom?Atoms are indivisible particles.
Protons are located in the nucleus.
Electrons form a cloud around the nucleus.
Neutrons orbit the nucleus along circular paths.

Answers

I think the best answer for this question is the third option. Electrons form a cloud around the nucleus. According to modern physics, electrons are in constant motion around the nucleus and protons. Additionally, electrons, protons and neutrons are considered as hard particles.

Answer:

its c because i took the test

Explanation:

When electrons jump off, They (scientific term)



Will give brainliest

Answers

Answer:

When an electron is hit by a photon of light, it absorbs the quanta of energy the photon was carrying and moves to a higher energy state. This higher energy state is to imagine that the electron is now moving faster, (it has just been "hit" by a rapidly moving photon) Electrons therefore have to jump around within the atom as they either gain or lose energy

Explanation:

They gain or lose energy.

The depictions of ionic compounds do not show distinct compound units but rather a collection of ions in the ratio given by the formula. Explain how the drawing of NaCl both illustrates that the compound exists as a large collection of ions and that the ratio of sodium ions to chloride ions is 1-to-1 as indicated by the formula NaCl.

Answers

Answer:

The ionic compound NaCl has a Face Centered Cubic unit cell

The site for atoms are Face, center and Edges corner.

Effective number of atoms

Na+

1centers + 12edges x(1)/(4) = 4 Na+  

Cl-

6face x(1)/(2)  + (1)/(8) x8 corners = 4Cl-

This is just one unit cell effective atom, there are thousand's of such unit cells are combined to form one such structure of NaCl. The real formula of NaCl is Na4Cl4 but for simplicity we use empirical formula that is NaCl.

Solids retain their shape and size, if kept constant temperature and pressure. At a constant temperature and pressure, liquids retain their:a. volume
b. shape
c. size
d. shape and volume

Answers

At a constant temperature and pressure, liquids retain their volume of matter.

What are the properties of matter ?

Matter is defined as total mass which occupy in space, all the physical structures are composed of matter, it can be present in three basic states such as solid, liquid, and gas.

The atoms are basic unit of matter and that make up the objects which can be visible and touched every day, the amount of matter in an object can be determined by its mass.

A physical property of matter  is an independent of its chemical composition. Density, color, hardness, melting and boiling points, and electrical conductivity are the examples.

Some characteristics like density, color, mass, volume, length, malleability, melting point, hardness, odor, temperature are  some properties of matter.

Learn more about properties of matter , here:

brainly.com/question/28200017

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simply volume, as shape and size depend on the host container
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What effect does the presence of dissolved sodium fluoride have on the dissociation equilibrium of hydrofluoric acid? (select all three that apply)...The percent dissociation of HF is reduced by the presence of dissolved NaF. THe pH of the solution containing NaF and HF would be higher than that of a solution of HF only. The presence of NaF drives the reaction towards the HF side to reach equilibrium. The concentration of H+ is higher in an HF solution containing NaF. The pH of the solution containing NaF and HF would be lower than that of a solution of HF only. The presence of the dissolved NaF does not affect the HF equilibrium reaction nor the equilibrium concentrations.