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motikmotik
3 years ago
15

Helpppppppppppppp pls ?

Chemistry
1 answer:
Amanda [17]3 years ago
5 0
1. C
2.b
3.e
4.a
5.d
Could you mark me brainliest possibly? Thank you
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The reaction of an acid and a base will always produce what kind of salt?
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Answer:

the answer of the question is c

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A piece of wood with a density of 0.85 g/cm^3 has a mass of 25 g. what is the volume of the wood?
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33) How many significant figures does the number 40230 have? *
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3 years ago
In step 2, of the experiment, the procedure uses 3.0M NaOH. However, the student notices that the only solution of NaOH is conce
Luda [366]

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We need 78.9 mL of the 19.0 M NaOH solution

Explanation:

Step 1: Data given

Molarity of the original NaOH solution = 19.0 M

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C1*V1 = C2*V2

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⇒with V1 = the volume of the original NaOH solution = TO BE DETERMINED

⇒with C2 = the concentration of the NaOH solution we want to prepare = 3.0 M

⇒with V2 = the volume  of the NaOH solution we want to prepare = 500 mL = 0.500 L

19.0 M * V2 = 3.0 M * 0.500 L

V2 = (3.0 M * 0.500L) / 19.0 M

V2 = 0.0789 L

We need 0.0789 L

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8 0
3 years ago
The density (d) of a substance is an intensive property that is defined as the ratio of its mass (m) to its volume (v).
vovangra [49]

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The density does not change with the addition or substraction of matter.

I hope I have been clear.

8 0
3 years ago
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