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ehidna [41]
2 years ago
7

Consider the motion diagram. It illustrates a car's velocity (V) and acceleration (A). The BEST description of a car’s velocity

in this diagram is:
A) A car’s velocity remained the same at 10 m/s.
B) A car’s velocity decreased from 10 m/s to 5 m/s.
C) A car increased its velocity from 5 m/s to 10 m/s.
D) A car increased its velocity from -5 m/s to -1 m/s.
Chemistry
2 answers:
Solnce55 [7]2 years ago
6 0

Answer:

its B i just took the test on  usatestprep

plz mark brainliest thanks

Masja [62]2 years ago
4 0

Answer:

wheres the diagram ?

Explanation:

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Answer:

0.677 moles

Explanation:

Take the atomic mass of K = 39.1, O =16.0, P = 31.0

no. of moles = mass / molar mass

no. of moles of K3PO4 used = 4.79 / (39.1x3 + 31 + 16x4)

= 0.02256 mol

From the equation, the mole ratio of KOH : K3PO4 = 3 :1,

meaning every 3 moles of KOH used, produces 1 mole of K3PO4.

So, using this ratio, let the no. of moles of KOH required to be y.

\frac{3}{1} =\frac{y}{0.02256} \\

y = 0.02256 x3

y = 0.0677 mol

If you don't find exactly 0.677 moles as one of the options, go for the closest one. A very slight error may occur because of taking different significant figures of atomic masses when calculating.

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2 years ago
A solution that is able to dissolve additional solute is best described as
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<h2>Question:</h2>

  • A solution that is able to dissolve additional solute is best described as _____.

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<h2>D.) Unsaturated </h2>

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<h2>For example:</h2>

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Explanation:

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