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2 years ago

Serena is mixing a material into a beaker filled with a liquid. She notices that the material seems to disappear into

SAT

2 answers:

Vikentia [17]2 years ago

6 0

<u>Answer:</u>

solubility

<u>Explanation:</u>

• Solubility is the property of an object that makes it dissolve in a solvent, thus making it 'disappear'. This is what is happening in the question.

• Conductivity is the property of a material that allows it to conduct electricity, i.e., it allows electricity to pass through it.

Vikentia [17]2 years ago

6 0

Answer:

Solubility

Explanation:

Solubility makes the material soluble into the water, making it seem like it disappeared. Conductivity is just a property that allows the material to conduct electricity.

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kow [346]

Answer:

The author makes this claim in the passage: Keeping animals in zoos is cruel and unfair to the animals.

The author supports this claim by discussing three major problems with zoos. The first problem is that zoos cause behavior problems in animals. The author supports this claim by mentioning studies that prove the claim. The author also states that zoos do not consider the specific traits of different animals. The author cites a study of a zoo in Belfast, Ireland, to support this claim. Lastly, the author states that zoos do not focus on protecting endangered animals. The author supports this claim by noting the number of zoos worldwide that support wildlife conservation.

Explanation:

that is the sample answer.

7 0

2 years ago

What is the measure of the complementary angle of 51 degrees.

maksim [4K]

The answer is 39 degrees

3 0

2 years ago

The following question has two parts. First, answer Part A. Then, answer Part B.

mezya [45]

Based on the chart, the correct options are:

The production of coal decreased, while the production of solar increased; option D.
Solar energy technology has improved and increased in capacity, but coal has decreased in capacity because it is a limited resource; option A

<h3>What is solar energy?</h3>

Solar energy is a type of renewable energy from the sun.

Solar energy is gradually being used to replace non-renewable energy sources such as coal.

Based on the chart:

The production of coal decreased, while the production of solar increased; option D.

Solar energy technology has improved and increased in capacity, but coal has decreased in capacity because it is a limited resource.

In conclusion, solar energy production is increasing.

Learn more about solar energy at: brainly.com/question/9477861

#SPJ1

6 0

2 years ago

What maximum amount of ammonia in kilograms can be synthesized from 5.22 kg of h2 and 31.5 kg of n2?

Fiesta28 [93]

Consider the unbalanced reaction,

H₂ + N₂ ===> NH₃

Balance it to get

3 H₂ + N₂ ===> 2 NH₃

This tells you that for every 3 moles of H₂ and 1 mole of N₂ among the reactants, 2 moles of NH₃ are produced.

Look up the molar masses of each component element:

• H : 1.008 g/mol ===> H₂ : 2.016 g/mol

• N : 14.007 g/mol ===> N₂ : 28.014 g/mol

• NH₃ : 17.031 g/mol

Convert the given mass to moles for each reactant:

• H₂ :

(5.22 kg) × (1000 g/kg) × (1/2.016 mol/g) ≈ 2589.29 mol

• N₂ :

(31.5 kg) × (1000 g/kg) × (1/28.014 mol/g) ≈ 1124.44 mol

Now,

(2589.29 mol H₂) : (1124.44 mol N₂) ≈ (2.30 mol H₂) : (1 mol N₂)

so that the amount of N₂ consumed is

(2589.29 mol H₂) × (1 mol N₂) / (3 mol H₂) ≈ 863.095 mol N₂

leaving an excess of about 261.343 mol N₂, and producing

(2589.29 mol H₂) × (2 mol NH₃) / (3 mol H₂) ≈ 1726.19 mol NH₃

Convert this to a mass :

(1726.19 mol) × (17.031 g/mol) × (1/1000 kg/g) ≈ 29.3987 kg

So, up to 29.4 kg of NH₃ can be synthesized.

4 0

3 years ago

A long string is stretched and its left end is oscillated upward and downward. Two points on the string are labeled a and b.

Klio2033 [76]

A long string can be easily stretched. The Two points on the string are labeled A and B is that A should be at 90 degrees with same magnitude and B should be at 270 degrees with same magnitude.

<h3>What is Angle magnitude</h3>

This is known as the amount of rotation via which one of the arms is said to be rotated about vertex to result in a given position of the other.

Equal vectors are known to have the same magnitude and direction. Two vectors are said to be equal when their magnitude and direction are said to be same.

See the full question below

A long string is stretched and its left end is oscillated upward and downward. Two points on the string are labeled A and B.At the instant shown, orient v(A) and v(B) to correctly represent the direction of the wave velocity at points A and B.At each of the points A and B, rotate the given vector to indicate the direction of the wave velocity.Figure:A string is attached and moving up and down

Learn more about Angles from

brainly.com/question/16281260

6 0

2 years ago