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OLga [1]
2 years ago
15

Can matter be created or destroyed? Yes or No

Chemistry
2 answers:
Stells [14]2 years ago
6 0

Answer:

none is created or destroyed. This concept is called the Law of Conservation of Mass.

anzhelika [568]2 years ago
5 0

Answer:

No

Explanation:

The same amount of matter is present before and after chemical and physical changes. Matter cannot be created or destroyed

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How many moles are in a mass of 800.0 g of magnesium?
qaws [65]

Answer:

32.92 moles of Mg

Explanation:

To convert grams to moles (Or vice versa) of any chemical compound we need to use the molar mass of the substance (That is, how many grams weighs 1 mole of the chemical).

The magnesium, Mg, has a molar mass of 24.305g/mol. That means in 800.0g of Mg you have:

800.0g * (1mol / 24.305g) =

<h3>32.92 moles of Mg</h3>
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2 years ago
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3 years ago
Which analogy can best be likened to the activation energy of a chemical reaction? a drain through which water flows a slide dow
Nina [5.8K]
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7 0
3 years ago
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How many grams is 2 drops of food coloring?
STatiana [176]
40g! sorry if i’m wrong!!
8 0
2 years ago
100 points
nordsb [41]

Hello!

My argument: Which is better a Ps4 or an Xbox 1


The Ps4 is a better all-round console. The PS4 costs $100 less but has less games than the Xbox 1. The Xbox 1 now came up with dual compatible games. This means that certain games can now run on the Xbox 1 and the Xbox 360. The overall winner is really undetermined. The controller for Xbox has more quicker response time and is specifically built to be an extremely comfortable in your hands. Unlike the PS4 which their controller is built for nothing they really didn't do anything to theirs. Although the console comparisons are the same. The hard drive for the Xbox is non- removable meaning that if you want the hard drive. you would have to break the Xbox to get it . Unlike the Ps4 when you can take it out easily and switch it with any console and still have your data. I am an Xbox fan since for ever but I think that the two consoles are built the same.


Hope it helps!



7 0
3 years ago
Read 2 more answers
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