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Alla [95]
3 years ago
15

What state of matter is the inner core and outer core of earth? please help!

Chemistry
1 answer:
kap26 [50]3 years ago
8 0

Molten state of matter is the inner core and outer core of earth

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In testing the effectiveness of an antacid compound, 20.0g of Hydrochloric Acid is mixed with 28.0g of Magnesium Hydroxide. Will
BartSMP [9]

Answer:

Base Mg(OH)2 does neutralise the acid and is 12g in excess.

Explanation:

2HCL +Mg(OH)2 -> MgCl2 + 2H20

2 * 36.458 g of HCL react with  58.319 g of  Mg(OH)2 to neutralise it.

72.916 HCl reacts with  58.319 g of the base.

So 20 g HCl reacts with  (58.319/72.916) * 20 = 16g.

There are 28 g of Mg(OH)2 so the base does neutralise all the acid.

The Mg(OH)2 is 28 - 16 = 12 g in excess.

4 0
3 years ago
The pK of acetic acid is pK = 4.76. For a 0.1 M solution of acetic acid at a pH = 4.76 what is the concentration of [H+]?
spin [16.1K]

Answer:

[H+] = 1.74 x 10⁻⁵

Explanation:

By definition pH = -log  [H+]

Therefore, given the pH,  all we have to do is  solve algebraically for  [H+] :

[H+]  = antilog ( -pH ) =  10^-4.76 = 1.74 x 10⁻⁵

6 0
3 years ago
A television weights 8.50 pounds. How many grams is this?
kolezko [41]

Answer:

3,855.532 grams

Explanation:

1 pound = 453.592 grams

8.50 = ? grams

--> 8.50 * 453.592 = 3,855.532 grams.

4 0
3 years ago
If a match were placed in the cone close to the barrel of the gas burner will it ignite
Pani-rosa [81]
I think it would seeing as you typicaly have to use a match to light a gas burner
8 0
3 years ago
What is the mass of 11.3 mole of argon?
MAXImum [283]
The answer is 451.4124 argon
6 0
2 years ago
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