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strojnjashka [21]
3 years ago
14

A ball is dropped from the top of a building.

Chemistry
2 answers:
Lera25 [3.4K]3 years ago
8 0

Answer:

2) After it has hit the ground

Explanation:

This is because the ball builds up energy as it falls. Once it hits the ground, all that energy is lost.

Murljashka [212]3 years ago
7 0

Your answer is B. or 2 - After it has hit the ground.

I took this quiz today and got this correct

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Since I'm a tomboy, does that mean I'm gender non-conforming?
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3 years ago
If 5 moles of KCIO3 react completely how many moles of KCI will firm
Lubov Fominskaja [6]
With what KClO3 reacts with if it is by temperature
2KClO3===》KCl + KClO + O2
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3 years ago
Compare the solubility of silver iodide in each of the following aqueous solutions:
Semenov [28]

Answer:

Compare the solubility of silver iodide in each of the following aqueous solutions:

a. 0.10 M AgCH3COO

b. 0.10 M NaI

c. 0.10 M KCH3COO

d. 0.10 M NH4NO3

1. More soluble than in pure water.

2. Similar solubility as in pure water.

3. Less soluble than in pure water.

Explanation:

This can be explained based on common ion effect.

According to common ion effect the solubility of a sparingly soluble salt decreases further in a solution which has a common ion to it.

The solubility of AgI(s) silver iodide in water is shown below:

AgI(s)  Ag^{+}(aq)+I^{-}(aq)\\

a. a. 0.10 M AgCH3COO has a common ion Ag+ with AgI.

So, AgI is less soluble than in pure water in this solution.

b. 0.10 M NaI has a common ion I- with AgI.

So, AgI is less soluble than in pure water in this solution.

c. 0.10 M KCH3COO:

This solution has no common ion with AgI.

So, AgI has similar solubility as in pure water.

d. 0.10 M NH4NO3:

In this solution, AgI can be more soluble than in pure water.

7 0
3 years ago
Which of the following elements have the highest percentage in terms of frequency in the Earth's crust and human body, respectiv
Likurg_2 [28]

Answer:

Oxygen is the most abundant element in the Earth's crust.

Explaination: It makes up 46% of the mass of the Earths crust.

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3 years ago
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What is the chemical formula for Magnesium and Phosphorus as a compound?
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The answer is Mg3 glad I helped

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3 years ago
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