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Sonja [21]
3 years ago
12

Help me please !mxmlelkxxexkexk

Chemistry
2 answers:
Travka [436]3 years ago
6 0
The answer is the mass will change by 2 grams with the ballon on top
Trava [24]3 years ago
3 0
Mass, mass is typically large body of matter with no definite shape
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Magnesium oxide can be made by heating magnesium metal in the presence of oxygen. The balanced equation for the reaction is
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3 years ago
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julia-pushkina [17]

Answer:

=2.0x10^4mg

Explanation:

Hello there!

In this case, when performing units conversions involving two proportional factors we need to make sure we first convert to the base unit and then to the target one; thus, since 1 kg = 1000 g and 1 g = 1000 mg, we set up the following expression:

=0.020kg*\frac{1000g}{1kg} *\frac{1000mg}{1g} \\\\=2.0x10^4mg

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