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Rom4ik [11]
3 years ago
11

With respect to a fixed point, motion is defined as a change in- A)speed B)position

Chemistry
1 answer:
Arisa [49]3 years ago
4 0

Answer:

With respect to a fixed point, motion is defined as a change in<u> position.</u>

Explanation:

MOTION -:  Motion is described as the fact in which any object or body changes its position over the time with respect to a fixed point .

Motion is defined as displacement, distance, velocity , acceleration, speed , and time in mathematical terms. By linking an observer to a frame of reference and measuring the shift in the position of the body with a change in time relative to that frame, the motion of a body is observed.      

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A chemist must prepare of 800.0 ml potassium hydroxide solution with a pH of 13.00 at 25°.
ArbitrLikvidat [17]

Answer:

4.48 grams is the mass of potassium hydroxide that the chemist must weigh out in the second step.

Explanation:

The pH of the solution = 13.00

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KOH(aq)\rightarrow K^+(aq)+OH^-(aq)

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Molariy of the KOH = 0.100 M

Volume of the KOH solution = 800 mL= 0.800 L

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Moles of KOH = n

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0.100 M=\frac{n}{0.800 L}

n = 0.0800 mol

Mass of 0.0800 moles of KOH :

0.0800 mol × 56 g/mol = 4.48 g

4.48 grams is the mass of potassium hydroxide that the chemist must weigh out in the second step.

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3 years ago
What is the substance called that is being dissolved in a solution?
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Answer:

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Explanation:

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