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solniwko [45]
3 years ago
6

A student has some​ $1 and​ $5 bills in his wallet. He has a total of 16 bills that are worth ​$40. How many of each type of bil

l does he​ have?
Chemistry
1 answer:
Alex787 [66]3 years ago
6 0
HELP!!!!!!!!!!!!!!!!!!!!!!!
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Position always is relative to another object or location <br> options: True False
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Answer:

True

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1. Dissolve 1 teaspoon of Epsom salts in a half cup of water.
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<span>1. The balanced equation for the reaction between magnesium sulfate and ammonia is MgSO4 + 2NH4OH → (NH4)2SO4 + Mg(OH)2
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Consideras que Colombia es un país democrático? Justifica tu respuesta​
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si es un país democrático.

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esperó te sirva

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2 years ago
Jennifer observes a weather map showing tomorrow's weather. She predicts that air will travel from the low pressure system to th
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7 0
3 years ago
Can someone help with this???
e-lub [12.9K]

Answer:

2Mg(s) +O₂(g) → 2MgO(s)

Explanation:

Mg(s) +O₂(g) → MgO(s)

When a chemical equation is balanced, the number of atoms of each element is equal on both sides of the arrow. We usually balance O and H last.

In this case, the number of Mg atoms is equal on both sides. Thus, let's move on to balance the O atoms. On the left side, there are 2 O atoms, while there is only 1 O atom on the left side. Thus, write a '2' in front of MgO.

Mg(s) +O₂(g) → 2MgO(s)

Now, the number of Mg atoms is not equal. Write a '2' in front of Mg to balance it.

2Mg(s) +O₂(g) → 2MgO(s)

The equation is now balanced with 2 Mg atoms and 2 O atoms on each side.

6 0
3 years ago
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