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krek1111 [17]
3 years ago
5

How are scientific questions answered?

Chemistry
1 answer:
galben [10]3 years ago
3 0

Answer:

D

Explanation:

Scientists always perform tests and observe and measure in the physical world to prove their points or answer their questions.

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Ivan
They tend to pick at it until it is in small enough pieces to swallow. Then their gizzard (rough muscle) in their stomach acts as internal teeth. 
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If you stretch back a rubber band and release it, it shoots across the room. What type of energy conversion has occurred?
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What type of reaction is shown below?
Elina [12.6K]

Answer:

Synthesis

Explanation:

Chemical equation:

3S + 2Fe → Fe₂S₃

The solid iron react with solid sulfur and form iron(III) sulfide. The reaction type is synthesis because,

Synthesis reaction:

It is the reaction in which two or more simple substance react to give one or more complex product.

A + B  → AB

Other options are incorrect because,

In double displacement  two compound exchange their ions and form new compounds.

AB + CD → AC +BD

In decomposition one reactant is break down into two or more product.

AB → A + B

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AB + C → AC + B

4 0
3 years ago
Apples tend to be more acidic than cherries. that means that cherries then to have a
Bingel [31]

Answer:
Higher pH (more alkaline)

Explanation:

The pH scale measures on a scale of 0 to 14 the acidity or basicness of whatever is being tested.

The lower the pH, the more acidic it will be. Acids are scaled as being anything having a pH of lower than 7.

The higher the pH, the more alkaline (or basic) it will be. Bases are scaled as being anything having a pH of higher than 7.

Substances that are at a pH of 7 are considered neutral, like water (H2O)

6 0
2 years ago
4<br> What two particles are found in the nucleus of an atom?<br> protons<br> neutrons<br> electrons
jenyasd209 [6]
Protons and electrons i got it right
6 0
3 years ago
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