Chemistry Middle School

which of the following is not something that the atmosphere does for us ?

a. the atmosphere gives us air to breath

b. the atmosphere provides us protection

c. the atmosphere gives us gravity

d. the atmosphere provides us with weather

Answers

Answer 1
D because we do not depend on the atmosphere for our weather.

Related Questions

A burning match is an example of a chemical change phase change nuclear change physical change

Answers

A burning match would be an example of a chemical change: two or more reactants are altered into new substances. In  the case of a burning match, sulfur, wood, and oxygen are combining to made smoke and ash.

A burning match is an example of a chemical change. The transformation of two or more reactants into new compounds.

The term "chemical change" describes a process when one or more compounds are changed into new substances with new chemical properties. The atoms of the original substances rearrange themselves to establish new chemical bonds during a chemical transition, producing new molecules or compounds.

An illustration of a chemical change, in which two or more reactants are changed into new compounds, would be a burning match. Sulphur, wood, and oxygen combine to create smoke and ash when a match is lit.

To know more about chemical change, here:

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What is the molar mass of (NH4)2SO4

Answers

Element. Symbol. Atomic artom. atoms
Hydrogen. H 1.00794 8
Nitrogen N 14.0067 2
Oxygen O 15.9994 4
Sulfur S 32.065 1

Molecular weight calculation:
(14.0067 + 1.00794*4)*2 + 32.065 + 15.9994*4

Molar mass of (NH4)2SO4 =
132.13952 g/mol

Covalent compounds:
a)are formed from one metal and one nonmetal
b) exchange electrons in a chemical bond
c) have a low melting point
d)have weaker bonds than ionic compounds

Which answer would be correct i think maybe B

Answers

The Answer is D:

d) covalent bonds have weaker bonds than ionic compounds

The correct option is c i.e, have a low melting point. Covalent compounds have a low melting point due to weaker intermolecular forces. They are formed from two or more nonmetal elements and share electrons in a chemical bond.

Understanding the properties of covalent compounds is essential in Chemistry. Let's analyze each option provided:

Option A: Covalent compounds are not formed from one metal and one nonmetal. Instead, they are formed from two or more nonmetal elements.Option B: This option is incorrect because, in covalent bonds, atoms share electrons rather than exchange them.Option C: Covalent compounds indeed have a low melting point compared to ionic compounds. This is due to the weaker intermolecular forces present in covalent compounds.Option D: Correct. Covalent bonds generally have weaker bonds than ionic compounds, making it easier to melt or boil covalent compounds.

Given the above explanations, the correct answer is Option C: Covalent compounds have a low melting point.

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