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seropon [69]
2 years ago
7

How many moles would there be in 500,000,000,000 atoms of silver? Show your calculation

Chemistry
1 answer:
atroni [7]2 years ago
5 0

Answer:

Answer: 3.01 * 10^35

Explanation:

500,000,000,000 * 6.02 * 10^23

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Which of the following is a vapor? <br>steam<br>hidrógen <br>oxygen <br>helium<br>​
Scrat [10]
Helium bc when u vape it goes into it lungs but also bringing helium at the same time.
7 0
3 years ago
40 g of CaCO3 is how many moles of CaCO3?<br> 10 moles<br> 0.4 moles<br> 40 moles<br> 100 moles
AleksandrR [38]

Answer:

0.4 moles

Explanation:

To convert between moles and grams you need the molar mass of the compound. The molar mass of of CaCO3 is 100.09g/mol. You use that as the unit converter.

40gCaCO3* 1mol CaCO3/100.09gCaCO3 = 0.399640 mol CaCO3

This rounds to 0.4 moles CaCO3

8 0
3 years ago
Answer True or False for each of the following statements. (a) The carburization surface was maintained at slightly less than 0.
fomenos

Answer:

verdadero/a

falso/b

verdadero/c

Explanation:

6 0
3 years ago
The ionization of pure water forms _____.
Evgesh-ka [11]

Answer: The ionization of pure water forms <u><em>hydroxide and hydronium ions.</em></u>

Explanation:

Ionization is a reaction in the pure water in which water breaks down into its constituting ions that hydronium ion and hydroxide ions.

H_2O+H_2O\rightleftharpoons H_3O^++OH^-

One molecule of water looses its proton to form hydroxide ion and l=the lost protons get associated with another water molecule to form hydronium ion.

4 0
3 years ago
A student would like to determine how heating a liquid changes its volume. The student hypothesizes that the liquid will increas
worty [1.4K]

Answer:

The volume of the liquid should be measured before it is heated.  

Explanation:

Because During an experiment to test how a variable changes a substance, it is important to first observe and record the characteristics of the substance before the variable is introduced. In this case, the variable is heat energy.  

7 0
3 years ago
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