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Sladkaya [172]
3 years ago
7

The best electrolyte solutions are A. dilute B. concentrated C. saturated

Chemistry
1 answer:
Rudiy273 years ago
8 0
The correct answer is A.) dilute
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Explain how you could calculate the acceleration of an object
mr_godi [17]
Acceleration = final velocity - initial velocity/time
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3 years ago
How does a balanced chemical equation illustrate that mass is never lost or gained in a chemical reaction?​
monitta

Answer:

Explanation:

Because if the equation is truly balanced, the elements on one side equal the element numbers on the other. Take a simple example.

Ba(OH)2 + 2HCl ==> BaCl2 + 2HOH

Now consider what is true.

Element            Number of the left            Number on the right.

Ba                             1                                              1

O                              2                                             2

H                               4                                            4

Cl                              2                                             2

Nothing has changed going from the left to the right. You may wonder how you get 4 for the hydrogens.

Ba(OH)2  has 2 hydrogens. You multiply the 2 by the hydrogens in the brackets.

2HCl = The 2 in front affects both the hydrogens and the chlorines. There are 2 hydrogens from the HCl

Total: 2 + 2 = 4 hydrogens. The right side is done the same way.

You are not getting different results on the right side than those that you had on the left. Mass is preserved. 1 Ba + 2 Os + 4Hs and 2 Cls on the left, gives the same numbers on the right. There is no loss of mass.

8 0
3 years ago
One mole of particles of any substance contains how many particles?
Rasek [7]
55.4 because that's how much one particle has
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astraxan [27]

Answer:

a) False

b) False

c) True

Explanation:

a) Most sulfur oxides formed during combustion come from sulfur in the air: The sulfur burns in presence of oxygen to produce sulfur oxides, the source of sulfur is anthropogenic activities (Human activities).

So the given statement is false.

b) A flue gas scrubber removes SO2 pollution in a coal-fired power plant by using lime to convert the SO2 into alcohols:

False

The lime reacts with sulfur dioxide to give carbon dioxide and calcium sulfite.

CaCO_{3}+SO_{2}--->CaSO_{3}+CO_{2}

c) True

c)

3 0
3 years ago
What did the copernican revolution demonstrate
AURORKA [14]

Answer:

The Copernican revolution demonstrated that science was a process of changing ideas.

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