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PolarNik [594]
3 years ago
11

Pt2 science...... Select correct answer ♡!

Chemistry
1 answer:
Dafna1 [17]3 years ago
6 0
E should be correct.

The color may change, precipitation may occur, bubbles may form, gas forms, and the temperature changes.

Mark if correct please!
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When ammonium nitrate is added to a suspension of magnesium hydroxide in water, the Mg(OH)2 dissolves. Write a net ionic equatio
Viefleur [7K]

Answer:

Net ionic: Mg(OH)_{2}+2NH_{4}^{+}\rightarrow Mg^{2+}+2NH_{3}+2H_{2}O

Explanation:

OH^{-} in Mg(OH)_{2} reacts with NH_{4}^{+} to form NH_{3} and H_{2}O.

Due to this acid-base reaction, Mg(OH)_{2} become soluble whenever NH_{4}NO_{3} is added to suspension of Mg(OH)_{2}.

In this reaction, NH_{4}NO_{3} acts as an acid and Mg(OH)_{2} acts as a base.

Molecular equation: Mg(OH)_{2}+2NH_{4}NO_{3}\rightarrow Mg(NO_{3})_{2}+2NH_{3}+2H_{2}O

Total ionic: Mg(OH)_{2}+2NH_{4}^{+}+2NO_{3}^{-}\rightarrow Mg^{2+}+2NO_{3}^{-}+2NH_{3}+2H_{2}O

Net ionic: Mg(OH)_{2}+2NH_{4}^{+}\rightarrow Mg^{2+}+2NH_{3}+2H_{2}O

7 0
3 years ago
There are 34 qeustions on a test John answers 22 of them correctly what is his percent error
Aleks [24]

Answer:

35.29%

Explanation:

% error = |experimental value - Accepted value| / Accepted Value x 100

Number of questions: 34

Number of questions answered: 22

%error = |22-34| / 34 x 100

Hence, John's percentage error is 35.29 % or 35.3%

4 0
3 years ago
Where do soil particles come from?
xxTIMURxx [149]

Answer:

All soil is made up of inorganic mineral particles, organic matter (including living things), air and water. Inorganic mineral particles make up more than half the volume of soil. These particles come from rocks – the parent material that formed the soil.

Hope this helps!

6 0
3 years ago
Helppppppppppppppppppppp
grandymaker [24]

Answer:

Formation of sedimentary rocks

Explanation:

I believe this is correct, May I get a brainliest???

3 0
3 years ago
A weak acid, ha, has a p������a of 4. 524. If a solution of this acid has a ph of 4. 799 , what percentage of the acid is not io
insens350 [35]

Answer:

highly endothermic

Explanation:

6 0
2 years ago
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