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alexdok [17]
3 years ago
14

Why are chemical equations balanced?​

Chemistry
1 answer:
Inessa05 [86]3 years ago
3 0

Answer:

Chemical equations need to be balanced so that they follow the law of conservation of mass.

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Which statement is true regarding the circuit schematic below?
LenKa [72]
Unless you're able to provide a diagram representing the problem, there's not much I can do so solve this problem.
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3 years ago
Calculate the mass of 0.00456 moles of (NH4)2SO4
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To find the mass you need to find the weight of a mol of the molecules by adding up the atomic mass.

N =  14.007 g/mol
H = 1.008 g/mol
S = 32.065 g/mol
O = 16 g/mol

2(14.007) + 8(1.008) + 32.065 + 4(16) = 132.143 g/mol

Now you know how much an entire mol weight you multiply it by how much you actually have 

0.00456 * 132.143 = 0.603 g
7 0
3 years ago
How many molecules of sulfur trioxide are in 78.0 grams?
zalisa [80]

Answer:

b) 5.87 E23 molecules

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3 years ago
suppose that you are comparing several objects. is it correct to say that the object with the largest volume has the largest mas
Semmy [17]

Answer:

No

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It is not correct to say that an object with the largest volume has the largest mass.

Mass and volume are not directly related. In fact, the relationship between them can be direct or inverse.

Mass is the amount of matter in a substance. Volume is the space a body occupies.

  • A balloon and a stone for example is a typical one.
  • A balloon has more volume but far lesser mass compared to a stone.
  • A stone, gravel sized has low volume but more massive than a balloon.

Therefore, it is wrong to say a balloon has more mass because it has more volume.

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