Which of the following nonmetals forms a gas commonly found in our atmosphere? Rn,Cl,I,or N

Answers

Answer 1

Answer: N, our atmosphere is about 80% nitrogen(N) and about 20% oxygen(O)

Answer 2

Answer: Nitrogen (N) our atmosphere is 80% N

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1. The following reaction does not proceed to form a product: H2O + Au---> no reaction. Why is that?A) Gold has a higher activity than hydrogen and cannot replace it. B) Gold has a lower activity than hydrogen and cannot replace it. C) The reaction cannot occur because water is a reactant. D) The reaction proceeds too slowly to create products. 2. Which of the following is the balanced form of the equation C2H6 + O2 --> CO2 + H2O? answer choices are attached A,B,C,D top to bottom 3. The equation 2NaNO3 + CaCl2 ---> 2NaCl + Ca(NO3)2 is balanced. How many atoms of sodium (Na) are there on either side of the equation? A) one B) two C) four D) six 4. All single-displacement reactions can be classified as another type of reaction as well. What type of reaction is that? A) combustion B) redox C) synthesis D) decomposition 5. If ions change places and a gas is formed, then what type of reaction is indicated? A) double-displacement B) synthesis C) decomposition D) single-displacement
Calculate the number of oxygen atoms in 2.00 moles of Mn2O7

How many moles of NO3 are there in 6.2g

Answers

6.2 divided by the mass number of NO3 is 0.1 moles.

Lambda=?
c=299,792,458
f=2x10to the 12th Hz
lambda=c/f
how do I solve this?

Answers

$\lambda=(c)/(f)\n\nc=299729458(m)/(s)\approx3*10^(8)(m)/(s)\n\nf=2*10^(12)Hz=2*10^(12)(1)/(s)\n\n\lambda=(3*10^(8)(m)/(s))/(2*10^(12)(1)/(s))=1,5*10^(8-12)*(m)/(s)*s=1,5*10^(-4)m$

Why do some substances react with each other while others do not

Answers

it depends on the Chemical the Substance has. The more Chemicals, the better the Substance gets when its mixed with another.

A propane torch is lit inside a hot air balloon during preflight preparations to inflate the balloon. What condition of the gas remains constant

Answers

Answer: Pressure

Explanation:

A non-metal usually forms 2 covalent bonds in its compounds.How many electrons will it take in its valence shell？

Answers

It will take 8 electrons in its valence shell.

.How many electrons will it take in its valence shell？

This non-metal usually forms 2 covalent bonds. This leads me to believe that it has 6 valence electrons, to begin with, and will take 2 more, one from each bond. Such that it ends with a full valence shell of 8 electrons.

In covalent bonds, non-metals share electrons to attain full valence shells.

How many electrons are present in nonmetal in their outermost shell?

Most of the non-metals have 4 to 7 electrons in their valence shells. Formation of ions: Non-metals tend to accept electrons in their valence shell to form negatively charged ions called anions.

Learn more about valence shell here: brainly.com/question/15076797

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In covalent bonds, non-metals share electrons to attain full valence shells.

This non-metal usually forms 2 covalent bonds. This leads me to believe that it has 6 valence electrons to begin with and will take 2 more, one from each bonds. Such that it ends with a full valence shell of 8 electrons.

The shape of the nucleus is maintained byA. the nucleolus.

B. the nuclear lamina.

C. the nuclear envelope.

D. the endoplasmic reticulum.

Answers

B. the necular lamina

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