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Grace [21]
2 years ago
11

20 How do you solve this ?

Chemistry
1 answer:
Kaylis [27]2 years ago
5 0

Answer:

eight oxygen atoms

Explanation:

This formula shows that in one mole of this compound, there are 3 moles of Ca atoms that combine with 2 moles of the PO4(phosphate) groups, which gives a total of 2 moles of P atoms and 8 moles of 0 atoms.

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Identify the correctly balanced chemical reaction.*
motikmotik

Answer:

CasH52(1) + 38 O2(g) → 25 CO2(g) + 26 H2O(g)

Explanation:

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Life as we know it could not exist without water. All the chemical reactions of life occur in an aqueous solution. Water molecul
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Which term best describes liquid behavior under pressure?
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3 years ago
Assume that the test tube shown started out having 10.00 g of mercury(II) oxide. After heating the test tube briefly, you find 1
anyanavicka [17]

This problem is providing information about the initial mass of mercury (II) oxide (10.00 g) which is able to produce liquid mercury (8.00 g) and gaseous oxygen and asks for the resulting mass of the latter, which turns out to be 0.65 g after doing the corresponding calculations.

Initially, it is given a mass of 10.00 g of the oxide and 1.35 g are left which means that the following mass is consumed:

m_{HgO}^{consumed}=10.00g-1.35 g=8.65 g

Now, since 8.00 grams of liquid mercury are collected, it is possible to calculate the grams of oxygen that were produced, by considering the law of conservation of mass, which states that the mass of the products equal that of the reactants as it is nor destroyed nor created. In such a way, the mass of oxygen turns out to be:

m_{O_2}=8.65g-8.00g=0.65g

Learn more:

  • brainly.com/question/14502981
  • brainly.com/question/14236219
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Determine the number of protons, electron and neutrons present in an atom of magnesium
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