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3 years ago

Does the bowling ball have more potential energy or kinetic energy just before it hits the ground? Why?

Chemistry

1 answer:

AnnZ [28]3 years ago

6 0

Answer:

Equal

Explanation:

When the bowling ball is first dropped, it has a maximum potential energy but minimum kinetic energy. The height is max, so the potential energy will be greatest. Velocity is 0, so kinetic energy will be 0.

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HELP!

katovenus [111]

Answer:

116.88 g

Explanation:

Step 1: Write the balanced equation for the synthesis of NaCl

Na + 1/2 Cl₂ ⇒ NaCl

Step 2: Calculate the moles corresponding to 45.978 g of Na

The molar mass of Na is 22.990 g/mol.

45.978 g × 1 mol/22.990 g = 1.9999 mol

Step 3: Calculate the number of moles of NaCl formed from 1.9999 moles of Na

The molar ratio of Na to NaCl is 1:1. The moles of NaCl formed are 1/1 × 1.9999 mol = 1.9999 mol.

Step 4: Calculate the mass corresponding to 1.9999 moles of NaCl

The molar mass of NaCl is 58.443 g/mol.

1.9999 mol × 58.443 g/mol = 116.88 g

3 0

3 years ago

Can ya help me out real quick?

Taya2010 [7]

Answer:

302 kj heat is released by lowering the temperature

8 0

3 years ago

Caleb wants to find out which type of floor material is best for bouncing tennis balls the highest. Which statement best describ

goldenfox [79]

Option 2 seems to be the best answer

4 0

3 years ago

Read 2 more answers

You want to compare the malleability of

Paul [167]

One way you could measure this is hitting the two metals with a mallet and seeing which one has more of a dent

6 0

3 years ago

Draw the major organic product that is expected when cyclopentanecarboxylic acid is treated with each of the following reagents:

son4ous [18]

Answer:

a. Sodium cyclopentanecarboxylate

b. No reaction

Explanation:

In this case, in the cyclopentanecarboxylic acid we have a carboxylic acid functional group. Therefore we have an "acid". The acids by definition have the ability to produce hydronium ions ( $H^+$ ).

With this in mind, for molecule a. we will have an acid-base reaction, because NaOH is a base. When we put together an acid and a base we will have as products a salt and water. In this case, the products are Sodium cyclopentanecarboxylate (the salt) and water.

For the second molecule, we have the hydronium ion ( $H^+$ ). This ion can not react with an acid. Because, the acid will produce the hydronium ion also, so a reaction between these compounds is not possible.

See figure 1

I hope it helps!

8 0

3 years ago