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Contact [7]
2 years ago
13

1. Which layers from North America are the same age as layers from Europe? Use the number or letter of the layer to identify it.

Chemistry
2 answers:
klio [65]2 years ago
7 0

answer:

1 with A, 3 with D

explanation:

  • look at the images they have inside them and see ones match
Margarita [4]2 years ago
6 0
1 with A and 3 with D
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Which statement correctly describes the location and charge of the electrons in an atom?
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Answer:

D

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The electrons revolve around the nucleus and they contain negative charge

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Which option accurately describes the first two stages of photosynthesis?
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3 years ago
Which feature does an iron metal have?
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Calculate the number of moles of aluminum, sulfur, and oxygen atoms in 4.00 moles of aluminum sulfate, al2(so4)3. express the nu
bagirrra123 [75]
<span>To calculate the number of moles of aluminum, sulfur, and oxygen atoms in 4.00 moles of aluminum sulfate, al2(so4)3. We will simply inspect the "number" of aluminum, sulfur, and oxygen atoms available per one mole of the compound. Here we have Al2(SO4)3, which means that for every mole of aluminum sulfate, there are 2 moles of aluminum, 3 (1 times 3) moles of sulfur, and 12 (4x3) moles of oxygen. Since we have four moles of Al2(SO4)3 given, we simply multiply 4 times the moles present per 1 mole of the compound. So we have 4x2 = 8 moles of Al, 4x3 = 12 moles of sulfur, and 4x12 = 48 moles of oxygen.

So the answer is:
8,12,48


</span>
3 0
3 years ago
Read 2 more answers
For the chemical reaction , I identify the reactant and the products .
svetlana [45]

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This is because the reactants are typically always on the left side of the yields symbol. In this decomposition reaction, it would still be the same as at the end of the reaction, there were to products produced: Mercury and Oxygen.

Products tend to always be on the right side of the yields symbol, they're what comes out of a reaction no matter what type.

Hope this helps!

7 0
3 years ago
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