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Alex73 [517]
3 years ago
14

What is the gravitational potential energy associated whit the spoon at the height relative to the surface of the table.If a spo

on is raised 21.0cm above a table and if the spoon and its contents have a mass of 30.0g.
Chemistry
1 answer:
igomit [66]3 years ago
4 0

Answer:

0.062J

Explanation:

Given parameters:

Height of raising the spoon = 21cm

Mass of spoon  = 30g

Unknown:

Gravitational potential energy  = ?

Solution:

The gravitational potential energy of a body is the energy by virtue of the position of a such a body in space.

It is given as:

   G. P. E  = mgh

where m is the mass

          g is the acceleration due to gravity

          h is the height

Convert the parameters to appropriate units.

      21cm to m gives 0.21m

      30g to kg gives 0.03kg

   G.P.E  = 0.03 x 9.8 x 0.21  = 0.062J

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Amino acids can be synthesized by reductive amination. Draw the structure of the organic compound that you would use to synthesi
UkoKoshka [18]

Answer:

Following are the answer to this question:

Explanation:

For the reductive amination of its carbonyl group, amino acids could be synthesized by reducing ammunition, which can be synthesized in the given attachment file:

please find the attachment:

4 0
3 years ago
HELP I WILL MARK YOU AS THE BRAINLIEST ANSWER
borishaifa [10]

Hey there! Here is the answer:

B.) decrease; increase

Here's why:

As you move from left to right across a period on the periodic table the size of an atom will decrease. As you move from top to bottom down a group on the periodic table the size of an atom will increase.

I really hope this answer helps you out! :)

8 0
3 years ago
PROBLEMS
AlekseyPX

Answer:

1.) 0.1 M

2.) 0.2 M

3.) 1 M

4.) Solution #3 is the most concentrated because it has the highest molarity. This solution has the largest solute to solvent ratio. The more solvent there is, the lower the concentration and molarity.

Explanation:

To find the molarity, you need to (1) convert grams NaOH to moles (via molar mass from periodic table) and then (2) calculate the molarity (via the molarity equation). All of the answers should have 1 sig fig to match the given values.

Molar Mass (NaOH): 22.99 g/mol + 16.00 g/mol + 1.008 g/mol

Molar Mass (NaOH): 39.998 g/mol

4 grams NaOH           1 mole
----------------------  x  ------------------  = 0.1 moles NaOH
                                 39.998 g

1.)

Molarity = moles / volume (L)

Molarity = (0.1 moles) / (1 L)

Molarity = 0.1 M

2.)

Molarity = moles / volume (L)

Molarity = (0.1 moles) / (0.5 L)

Molarity = 0.2 M

3.)

Molarity = moles / volume (L)

Molarity = (0.1 moles) / (0.1 L)

Molarity = 1 M

7 0
2 years ago
LOOK AT THE IMAGE ABOVE PLEASE SOMEONE HELP OMG PLEASE IM LITERALLY STRESSED PLEASE HELP. I got the answer wrong. Please help an
Anna35 [415]
D, the more liquid there is, the less the temperature will be affected
8 0
3 years ago
50.0 mL of an HNO^3 solution were titrated with 36.90 mL of a 0.100 M LiOH solution to reach the equivalence point. What is the
NISA [10]

Answer:

0.0738 M

Explanation:

HNO3 +LiOH = LiNO3 + H2O

Number of moles HNO3 = number of moles LiOH

M(HNO3)*V(HNO3) = M(LiOH)*M(LiOH)

M(HNO3)*50.0mL = 0.100M*36.90 mL

M(HNO3) = 0.100*36.90/50.0 M = 0.0738 M

6 0
3 years ago
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