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lukranit [14]
3 years ago
10

1. Hydrogen, Helium, Lithium?

Chemistry
1 answer:
Reika [66]3 years ago
6 0

Answer:

what happened to it, have the gone extinct

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Question 21
Mumz [18]
There are 2 moles of O stones present in 88 grams of CO2. Why? Well, we can find the amount of moles present in 88 grams of CO2 by dividing the mass by the molar mass. The mass of CO2 comes out to be 88 grams. The molar mass of CO2 comes out to be 44 grams. Because 88 is the mass of CO2 and 44 is the molar mass of CO2, we can divide 88 by 44 to identify that there are 2.0 moles of O atoms present in 88 grams of CO2.

Your final answer: There are 2.0 moles of O atoms present in 88 grams of CO2. Your final answer to this question is D, or 2.0 moles. If you need to better understand, let me know and I will gladly assist you.
5 0
2 years ago
Place these elements in order of LOWEST electronegativity to HIGHEST.
mrs_skeptik [129]

Answer:

Barium

Molebdenum

Cobalt

Nitrogen

Explanation:

science

8 0
3 years ago
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Write balanced equation of carbon burning in air​
Ne4ueva [31]

Answer:

When carbon is burned in air, it forms carbon dioxide gas and releases a large amount of heat and some light:

C+O2= CO2+ heat+ light

6 0
2 years ago
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What is enthalpy?
White raven [17]
The awnser is A. Idek I looked it up so yeah that’s the awnser
7 0
3 years ago
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Which of the following is a tidal current
Tamiku [17]

Answer:

Explanation:

Options?

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