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harkovskaia [24]
2 years ago
12

Is the following equation balanced? Why or why not? 2H2 +02 → 2H,0

Chemistry
1 answer:
Natasha2012 [34]2 years ago
3 0

Answer:

Yes

Explanation:

It is balanced because On both sides there are 4 hydrogen atoms and 2 oxygen atoms, or in this case, 2 molecular hydrogens and 1 molecular oxygen, which made hydric acid, aka dihydrogen monoxide, or universally, as water.

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What is the solution to the problem expressed to he correct number of significant figures? 12.0/7.11
Law Incorporation [45]

Answer: The solution to the problem expressed to he correct number of significant figures is 1.69

Explanation:

Significant figures : The figures in a number which express the value -the magnitude of a quantity to a specific degree of accuracy is known as significant digits.

The rule applied for multiplication and division is :

The least precise number determines the number of significant figures in the answer.

As 12.0 has 3 significant digits and 7.11 also has 3 significant digits, the answer would also contain 3 significant digits.

For \frac{12.0}{7.11}=1.69

Thus the solution to the problem expressed to he correct number of significant figures is 1.69

6 0
2 years ago
What is a solution?
Mama L [17]
The correct answer is a solute and a solvent

A solution is any homogenous mixture of two or more substances. It does not necessarily have to be liquid or gaseous. 
7 0
3 years ago
Outer membrane surrounding the yolk, allantois, and amnion that allows for gas exchange
alexandr1967 [171]
It's called the chorion.
8 0
3 years ago
Models have been created that predict world sea levels will rise if the current global temperature increases continue. If these
lesya [120]
To solve this question, think about which one of these options is a DIRECT effect of sea levels rising.

Choice A: If sea levels rise, they would start to cover up land that's at sea level, areas like beaches or coastal cities for example.

Choice B: Fossil fuels cause global warming. This is about the effects of global warming, not the causes. 

Choice C: Not relevant. It doesn't mention alternative energy at all in this.

Choice D: Again, effects, not causes (see Choice B explanation).

The correct answer is... CHOICE A
5 0
3 years ago
How many significant digits are in this number: 0.0030670?
yarga [219]

Answer:

Answer:

Number of Significant Figures: 5

The Significant Figures are 3 0 6 7 0

Explanation:

hope this helps

6 0
3 years ago
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