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kodGreya [7K]
2 years ago
13

HELP!!!!!! DUE IN 1 HOUR

Chemistry
1 answer:
Gnesinka [82]2 years ago
5 0

Answer:

Group 17, 2, 7, 7 electrons

Explanation:

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A student measures the mass of an 8 cm^3 block of brown sugar to be 12.9 g. What is the density of
Oduvanchick [21]

Answer:

1.6125 g/cm^3

Explanation:

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4 0
3 years ago
1. Determine the amount concentration of calcium ions and acetate ions in a 0.80 mol/L
PIT_PIT [208]

Since there is one mole of Ca^2+ in calcium acetate, its concentration is 0.80 mol/L.

<h3>What is concentration?</h3>

The term concentration has to do with the amount of substance in solution. The concentration can be measured in several units. Generally, concentration is expressed in molarity, molality, mass concentration units or percentage.

Now we are asked to find the amount concentration of calcium ions and acetate ions in a 0.80 mol/L solution of calcium acetate. The formula of calcium acetate is Ca(CH3COO)2.

Thus;

Ca(CH3COO)2(aq)  ----> Ca^2+(aq) + 2CH3COO^-(aq)

It then follows that since there is one mole of Ca^2+ in calcium acetate, its concentration is 0.80 mol/L.

Learn more about concentration:brainly.com/question/10725862

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6 0
1 year ago
1) A toy car with a mass of 2.35 kg is pushed with a force of 21.6 N. What is the acceleration of the car?
Nataly_w [17]

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The acceleration of the car is 9,19 m/s2

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a=21,6 kg x m/s2 x 2,35 kg

a=9,191489362  m/s2

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3 years ago
True of false? Scientists estimate that one thimble of soil could hold more than 20,000 microorganisms.
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What’s the pattern of a Gas and Plasma?!!
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Hope it help!

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2 years ago
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