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snow_tiger [21]
3 years ago
11

PLEASE HELP ANSWER FAST WILL MARK BRAINLIEST AND GIVE 20 POINTS

Biology
1 answer:
hodyreva [135]3 years ago
7 0

Answer:

its a compound

Explanation:

because it was broken down into a gas and blue powder, elements cant be broken into simpler substances.

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In an experiment studying the effects of acid rain on pond water, which
Dovator [93]

Answer:

my prediction is maybe, d. a container of pond water with acid added to it.

Explanation:

because if you say the effects of acid rain on pond water, you can try that kind of experiment to find your product.

5 0
4 years ago
How can microalgae be used to create biodiesel
mestny [16]

The oil extracted through these methods is referred to as "green crude" and it's not ready to be used as fuel until it undergoes another process called transesterification. This step adds more substances to the mix, including alcohol and a chemical catalyst that causes the alcohol to react with the oil. This reaction creates a mix of biodiesel and glycerol. The final step in processing separates the glycerol from the mixture and leaves a biodiesel that's ready to be used as fuel. Maybe one day it really will be easy being green.


You can read more about it here https://auto.howstuffworks.com/fuel-efficiency/biofuels/convert-algae-to-biofuel.htm

8 0
3 years ago
In the early development of a zygote the number of cells increasein size in the process of
faust18 [17]
This process is mitosis. mitotic cell division is how they grow.
6 0
3 years ago
12 If pressure is applied to a rock until its volume is
mote1985 [20]

Answer: The correct answer to the question is option 2

If pressure is applied to a rock until it's volume is reduced by one half how the new density compares to it's original density is ; THE NEW DENSITY IS TWICE IT'S ORIGINAL DENSITY.

Explanation: Density is defined as mass divided by volume,density increases with pressure and it's determined by spaces between atoms in the object being measured.

Density is directly proportional to Pressure,so when pressure increases, Density increases and when pressure decreases,density decreases.

Density is indirectly or inversely proportional to temperature. so when pressure and density increases, temperature remains constant.

This is applicable to the scenerio with the rock in the question,as the pressure on the rock is increasing,the density is increasing too.

7 0
4 years ago
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guapka [62]

Answer:

My hypothesis is that the Hawaiian Island chain was formed by a hot spot in the middle of the Pacific Plate. While the hot spot itself is fixed, the plate is moving. My data supports my hypothesis because as the plate moved over the hot spot, the islands that make up the Hawaiian Island chain were formed.

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4 years ago
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