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Nikolay [14]
3 years ago
8

PLEASE FILL IN THE BLANKS! THANKS!

Chemistry
1 answer:
In-s [12.5K]3 years ago
4 0
12 atomic number
13 mass number
14 model
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An atomic physicist determines that an atom is composed of 8 positively charged particles and has a mass of 15 amu. Which is the
Alenkinab [10]

Answer: The atom has 7 neutrons and 8 protons.

Explanation: On Edhenuity!!!!!!!!!

8 0
3 years ago
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When the following equation is balanced, the coefficient of Al is ___ Al (s) + H20 (1) - Al(OH)3 (s) + H2 (g) A) 4 B) 1 C) 5 D)
Salsk061 [2.6K]

<u>Answer:</u> The correct answer is Option E.

<u>Explanation:</u>

Every balanced chemical equation follows law of conservation of mass.

This law states that mass can neither be created nor be destroyed but it can only be transformed from one form to another form.  

This also means that total mass on the reactant side must be equal to the total mass on the product side.

The balanced chemical equation for the reaction of aluminium and water follows:

2Al(s)+6H_2O(l)\rightarrow 2Al(OH)_3(s)+3H_2(g)

The coefficient of Aluminium is 2.

Hence, the correct answer is Option E.

7 0
3 years ago
Why am i so cool<br><br> insta: gabriel.the.businessman
mario62 [17]

Answer:

1 +1 = 2

(Just put this here so it doesn't get flagged)

Explanation:

1 +1 = 2

2 -1 =1

1-1 =0

Ta da

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A: I have no clue lol :)

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5 0
3 years ago
Which of the following
Leokris [45]

A. Acids and bases don't react with each other.  --> False.  Acids and bases react in reactions called neutralization reactions, whose products are salt and water.

B. Acids mixed with bases neutralize each other.  --> True.  See above.

C. Acids mixed with bases make stronger bases.  --> False.  Acids and bases react to neutralize each other, so they would weaken each other, not result in a stronger base or a stronger acid.

D. Acids mixed with bases make stronger acids.  --> False.  See above.

<h3>Answer:</h3>

B. Acids mixed with bases neutralize each other

7 0
3 years ago
The above shows a balloon full of gas which has a volume of 120.0 mL
bazaltina [42]

Answer: 128 mL

Explanation: 120mL/300k=v2/320k

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3 years ago
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