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kirza4 [7]
3 years ago
13

If scientists want to determine if a skin cream is effective against fighting acne, what would be the independent variable?

Chemistry
1 answer:
lina2011 [118]3 years ago
6 0

Answer:skin cream

Explanation:

the independent variable is the variable that is always changed or manipulated. in this case the skin cream is the independent variable.

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2KClO3 —> 2KCl2+ 3O2
garik1379 [7]

Answer:

False. The balanced equation should be

2KClO3-->2KCl + 3O2

it is a decomposition reaction.

3 0
2 years ago
It is primarily used as energy storage found in the cell membrane​
Gnesinka [82]

Answer:

ATP—Adenosine triphosphate, a nucleotide which is the most important short-term energy storage compound in cells. It is the “energy currency” of the cell, necessary for practically all metabolic activities. Carbohydrate—A type of organic molecule made of carbon, hydrogen, and oxygen.

4 0
2 years ago
Even though plutonium-239 (t₁/₂=2.41310⁴ yr) is one of the main fission fuels, it is still a radiation hazard present in spent u
zalisa [80]

Radioactive isotopes eventually decay, or disintegrate, to harmless materials. Some isotopes decay in hours or even minutes, but others decay very slowly. Strontium-90 and cesium-137 have half-lives of about 30 years (half the radioactivity will decay in 30 years). <u>Plutonium-239 has a half-life of 24,000 years.</u>

<u></u>

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<h3>What is radioactive decay? </h3>

Radioactive decay is the emission of energy in the form of ionizing radiation. The ionizing radiation that is emitted can include alpha particles, beta particles and/or gamma rays. Radioactive decay occurs in unbalanced atoms called radionuclides.

Elements in the periodic table can take on several forms. Some of these forms are stable; other forms are unstable. Typically, the most stable form of an element is the most common in nature. However, all elements have an unstable form. Unstable forms emit ionizing radiation and are radioactive. There are some elements with no stable form that are always radioactive, such as uranium. Elements that emit ionizing radiation are called radionuclides.

Learn more about Radioactive decay

brainly.com/question/8788860

#SPJ4

8 0
1 year ago
There would have to be three nitrogen atoms in the products. The law of conservation of matter states that the amount of substan
Volgvan

Answer:

There are three nitrogen atoms in the products. The law of conservation of mass states that the amount of substance should be the same before and after a reaction. ... balanced because the total number of oxygen atoms is 3.

Explanation:

Is this helpful??

8 0
3 years ago
Read 2 more answers
Which of these statements BEST describes a possible environmental
andriy [413]

Answer:

Option B. is correct

Explanation:

Wind turbines collect the kinetic energy of wind using the turbine blades. The blades turn an electric generator as they are connected to a drive shaft, which in turn produces electricity.

These turbine blades can disrupt flying wildlife including bats and birds.

So,

wind farms can disrupt migrating wildlife.

Option B. is correct.

6 0
3 years ago
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