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Greeley [361]
3 years ago
7

You probably already know the names of some molecules. Identify which compound (water, salt, carbon dioxide, or methane) corresp

onds to each of the following chemical formulas. H2O is . CO2 is . NaCl is . CH4 is .
Chemistry
2 answers:
vladimir1956 [14]3 years ago
7 0

CO2 is carbon

H2O is water

CH4 is methane

NaCI is salt

Natali5045456 [20]3 years ago
6 0

Explanation:

Water has a formula which represents two hydrogen atoms are attached to one oxygen atom. Therefore, the formula of water is H_{2}O.

Salt is also known as sodium chloride. Its formula represents that one sodium atom is attached to one chlorine atom, therefore, its formula is NaCl.

Carbon dioxide has a formula which represents one carbon atom is attached to two oxygen atoms. Therefore, its formula is CO_{2}.

Methane has a formula which represents one carbon atom is attached to four hydrogen atoms. Therefore, its formula is CH_{4}.

Thus, we can conclude that H_{2}O is water, CO_{2} is carbon dioxide, NaCl is salt, and CH_{4} is methane.


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Answer:

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3 years ago
The standard cell potential (E°) of a voltaic cell constructed using the cell reaction below is 0.76 V: Zn (s) + 2H+ (aq) → Zn2+
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Answer:

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Explanation:

the problem will be solved by using Nernst's equation, which is :

E_{cell}=E^{0}_{cell}- \frac{0.0592}{n}logQ

In the given equation

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on calculating

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3 years ago
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