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Ratling [72]
3 years ago
8

List three signs that could make you think that a chemical reaction was taking place. Explain how you got your answer.

Physics
1 answer:
hammer [34]3 years ago
8 0
1.) temperature change, 2.) color change, 3.) gas formation

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Select all that apply.
sattari [20]

Answer: The temperature and the number of molecules must remain constant for the law to apply.

Explanation:

6 0
3 years ago
Zaiden and lisa are testing music effects on plants
USPshnik [31]

Answer:

Anymore information?

Explanation:

5 0
3 years ago
Detailed measurements of the disk and central bulge region of our galaxy suggest our milky way is a
Makovka662 [10]

Answer:

barred spiral galaxy

Explanation:

There exist various forms of galaxies which include barred spiral, spiral, irregular and elliptical galaxies.

The galaxy we live in, the milky way galaxy i structured in the form of a spiral with bars located within it hence its a barred spiral galaxy. It is composed of six parts which includes the nucleus,a disk, spiral arms, central bulge, sphere and a halo.The components interact with each other.At the center of the milky way galaxy resides a massive black-hole called Sagittarius.

3 0
4 years ago
PLEASEE HELPPLook at the diagram of two students pulling a bag of volleyball equipment. The friction force between the bag and t
mars1129 [50]

Answer:

The net force is 21 N, and the bag will go to the right.

Explanation:

You can find the net force by adding both values of the boy and the girl, and then subtracting four from it. You can also figure out which direction its moving by looking at which side is exerting the most force, which would be the right side.

<em>Hope </em><em>it </em><em>helps</em><em>!</em>

7 0
3 years ago
When you hear an ambulance siren, it alternates between high and low tones, depending on the frequency of sound waves. this is c
dangina [55]
<span>Frequency of a sound wave is called the pitch. Higher frequencies have a higher pitch and lower frequencies have the opposite. When an ambulance travels by a listener, the frequencies are oscillating rapidly and causing the shrill, loud sounds that emanate from the sirens.</span>
6 0
4 years ago
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