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SashulF [63]
3 years ago
10

What in the world is the answers

Chemistry
1 answer:
S_A_V [24]3 years ago
5 0
There is a website for this, when I was in 7th grade I had a paper that looked exactly like this, just look up the answers until you find a website for it.
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No icicles are water made up of atoms not cells
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3 years ago
A bullet is fired at 2398 ft/s. What is this in units of miles/hr?
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1635 miles/hr.

Hope this helps
6 0
4 years ago
Which of the following mixtures would result in a buffered solution when 1.0 L of each of the two solutions are mixed?
drek231 [11]

Answer:

c. 0.2 M HNO₃ and 0.4 M NaF .

Explanation:

A buffer is defined as the mixture of a weak acid with its conjugate base or a weak base with its conjugate acid.

A weak acid or weak base are defined as an acid or base that partially dissociates in aqueous solution. in contrast, a strong acid or base are acids or bases that is dissociated completely in water.

Thus:

a. 0,2M HNO₃ and 0.4 M NaNO₃. This is a mixture of a strong acid with its conjugate base. <em>IS NOT </em>a buffer.

b. 0.2 M HNO₃ and 0.4 M HF . This is a mixture of two strong acids. <em>IS NOT </em>a buffer.

c. 0.2 M HNO₃ and 0.4 M NaF . NaF is the conjugate base of a weak acid as HF is.

The reaction of HNO₃ with NaF is:

HNO₃ + NaF → HF + NaNO₃

That means that in solution you will have a weak acid (HF) with its conjugate base (NaF). Thus, this mixture <em>IS </em>a buffer.

d. 0.2 M HNO₃ and 0.4 M NaOH. This is the mixture of a strong acid with a strong base, thus, this <em>IS NOT </em>a buffer.

I hope it helps!

7 0
3 years ago
According to LOCO mass, the mass of reactants and products are what?
eimsori [14]

Answer:

Equal

Explanation:

According to the law of conservation of mass, the mass of the products in a chemical reaction must equal the mass of the reactants.

3 0
2 years ago
Is the water found in the watershed clean and safe for drinking?
Dafna11 [192]
I heard that most of the time water found in watersheds aren’t usually clean nor safe for drinking, but i know that there are very few that are somewhat safe for drinking. It’s just not usually common to find clean and healthy watersheds though.
8 0
3 years ago
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