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lubasha [3.4K]
3 years ago
5

What subatomic particles make up the nucleus of an atom (select ALL that are in the nucleus)

Chemistry
1 answer:
Ilia_Sergeevich [38]3 years ago
3 0
3 and 4 i would think
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An object has a density of 1.8 g/mL and a mass of 14 g. What is the volume of the object
lesya692 [45]

Answer:

0.13 cm^3

Explanation:

Volume = Mass/ density

1.8 g/ml / 14g = 0.128571429

Both numbers have 2 significant digits.

With that, the answer rounds to 0.13

The final answer is 0.13 cm(don't forget the units for volume)

Hope it helped!

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Why must the number of electrons lost equal the number of electrons gained in every redox reaction
balandron [24]
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4 years ago
How many milliliters of 0.200 M NH4OH are needed to react with 12.0 mL of 0.550 M FeCl3?
trapecia [35]

Answer:

9.9 ml of 0.200M NH₄OH(aq)

Explanation:

3NH₄OH(Iaq) + FeCl₃(aq) => NH₄Cl(aq) + Fe(OH)₃(s)

?ml of 0.200M NH₄OH(aq) reacts completely with  12ml of 0.550M FeCl₃(aq)

1 x Molarity NH₄OH x Volume Am-OH Solution(L) = 2 x Molarity FeCl₃ x Volume FeCl₃ Solution

1(0.200M)(Vol Am-OH Soln) = 3(0.550M)(0.012L)

=> Vol Am-OH Soln = 3(0.550M)(0.012L)/1(0.200M) = 0.0099 Liter = 9.9 milliliters  

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True or false: Some parasites have complex life cycles where they live in different species of hosts at different stages
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Answer:

true

Explanation:

6 0
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