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Mashcka [7]
3 years ago
13

MgO(s) + H2O(l) → Mg(OH)2(aq)

Chemistry
1 answer:
Sedbober [7]3 years ago
8 0
My apologies, I don’t seem to understand the question.
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<span>A generator converts mechanical energy into electrical energy, while a motor does the opposite - it converts electrical energy into mechanical energy.</span>
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What is the difference between a substance at low temperature and one at high temperature
givi [52]

Answer:

Explained below.

Explanation:

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Some elements are liquids or gases.<br><br><br> True <br> False
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3 years ago
Calculate the number of moles of magnesium, chlorine, and oxygen atoms in 7.80 moles of magnesium perchlorate, Mg(ClO4)2.
Dmitry [639]
 The number of moles of moles of  Magnesium,chlorine and oxygen atoms in 7.80 moles of Mg(ClO4)2 is calculated as below

find the total number of each atom in Mg(ClO4)2

that is mg = 1 atom
        Cl =  1x2 = 2 atoms
        O  = 4  x2 = 8 atoms

then multiply 7.80 moles with total number of each atom , to get the number moles of each atom
that is

Mg = 7.80 x1= 7.80  moles
cl =   7.80  x2=15.6  moles
O =  7.80 x8= 62.4 moles

5 0
3 years ago
When a gas is pumped into a small rigid container the pressure inside the container increases as more particles are added. If th
marysya [2.9K]
Since the container of the gas is rigid, the volume of the gas will remain constant. Therefore, when the number of particles were decreased in half then the pressure will also be half of the original given they both are subjected to the same temperature.

PV = nRT

V, T and R are constants so they can be lumped together to a constant k.

P/n = k
P1/n1 = P2/n2

since n2 = n1/2
P1/n1 = P2/<span>n1/2</span>
P2 = P1/2
3 0
3 years ago
Read 2 more answers
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