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8_murik_8 [283]
3 years ago
10

Give three different between temporary and permanent change​

Chemistry
1 answer:
Morgarella [4.7K]3 years ago
4 0

Answer:

temporary is only for specific amount of time and permanent is suppost to mean forever

Explanation:

all i can say is not much can be permanent

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Which is an element?<br> A: H20<br> B: NaCl<br> C: Mg<br> D: CO
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3 0
3 years ago
Read 2 more answers
How many grams are in 11.9 moles of chromirum
faust18 [17]

Answer:

Explanation:

Method 1 proportion

1 mole of chromium is 52 grams

11.9 moles = x grams

1/11.9 = 52/x                    Cross multiply

x = 11.9 * 52

x = 618.8                         grams

Now I have used an approximate mass for Chromium. The answer you get here is expected to reflect the weigth given on your periodic table Use that to get your answer. You should give a number very close to mine. Round to 3 places as in 619.

Method Two  Formula

mols = given mass / molecular mass

11.9 = given mass /  51.9961          Multiply both sides by  51.9961

11.9 *51.9961  = given mass            

given mass = 618.75

given mass = 619

3 0
3 years ago
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