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dexar [7]
3 years ago
6

Where do all of the elements heavier than Hydrogen come from?

Chemistry
1 answer:
Mamont248 [21]3 years ago
7 0
B.They were forged inside of stars.
You might be interested in
How do you convert from Fahrenheit to Celsius temperatures
balu736 [363]
Well, 1st, you need to take the Fahrenheit temperature and subtract it from 32, make sure you put it in parentheses. Then, 2nd, you multiply it by it by 5/9. Here's an example of my explanation didn't make since:
T(°C) = (68°F - 32) × 5/9 = 20 °C
And that's how you convert Fahrenheit to Celsius temperatures.
5 0
3 years ago
Read 2 more answers
1. A positive value for AH for a chemical reaction is an indication of which of the following?
goldenfox [79]
C is the correct answer
5 0
3 years ago
What is equal to the number of particles in 24 grams of carbon-12? 2 moles 2:1 mole ratio 2:1 molar mass 1:2 molar volume
mariarad [96]

Answer:

The answer to your question is 2 moles of Carbon

Explanation:

Carbon-12 means it has a molecular mass of 12g / mol. Mol is defined as the number of grams of an atom in one mol.

To solve this problem, we use proportions

                                    12 g of Carbon ---------------- 1 mol of Carbon

                                     24 g of Carbon --------------   x

                                     

                                      x = ( 24 g x 1 mol ) / 12 g

                                      x = 24 / 12

                                     x = 2 mol of Carbon

8 0
3 years ago
WHAT IS THE ABILITY OF A SUBSTANCE TO BE DISSOLVED
siniylev [52]

Answer:

Solubility

Explanation:

8 0
3 years ago
Rn-222 has a half-life of 3.82 days. If 25.0 g of Radon-22 was originally present, approximately how many grams would be left af
horsena [70]

Answer:

Approximately 0.39 g or 0.4 g if you're rounding up

Explanation:

15/3.82 = 3.92

Let's round that up to 4

That means 15 days is around 4 half lives

4 half lives means 1/16 of the original mass will be left

25/16 = 0.390625

6 0
4 years ago
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