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inessss [21]
2 years ago
15

2.7g of aluminum metal is placed into solution hydrochloric acid to form aluminum chloride and hydrogen gas.

Chemistry
1 answer:
Sidana [21]2 years ago
3 0

Explanation:

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in g meat

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Which of the following is true for the reaction below? CO2(g) + 393.5 kJ C(s) + O2(g)
AleksandrR [38]
It is endothermic and the ∆H = +393.5 kJ.
6 0
3 years ago
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Iron(II) sulfide reacts with hydrochloric acid according to the reaction:
Inessa [10]
The balanced chemical reaction would be:

FeS(s)+2HCl(aq)→FeCl2(s)+H2S(g) 

We are given the amount of the reactants to be used for the reaction. We use these amounts. First, we determine the limiting reactant of the reaction. From the data, we can say that FeS is the limiting ad HCl is the excess reactant. We calculate as follows:

Amount of HCl used: 0.240 mol FeS x 2 mol HCl / 1 mol FeS = 0.48 mol HCl

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3 years ago
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3 0
2 years ago
Which of these is a chemical property of a substance? texture ductility reactivity conductivity
beks73 [17]

Reactivity is a chemical property of a substance. According to EPA regulations, it is normally unstable and readily

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8 0
3 years ago
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How many moles are in 5.5 x 10-23 molecules of H2O
masha68 [24]

Answer:

0.914moles

Explanation:

The number of moles in a substance can be got by dividing the number of atoms/molecules/particles by Avagadro's constant (6.02 × 10^23).

That is;

number of moles (n) = number of atom (nA) ÷ 6.02 × 10^23

According to this question, there are 5.5 x 10-23 molecules of H2O

n = 5.5 x 10^23 ÷ 6.02 × 10^23

n = 0.914 × 10^(23-23)

n = 0.914 × 10^0

n = 0.914 × 1

n = 0.914moles

6 0
3 years ago
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