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2 years ago

Explain why oil is called a fossil fuel.

2 answers:

6 0

Fossil fuels are called so because they have been derived from fossils, which were formed millions of years ago during the time of the dinosaurs. They are fossilized organic remains that over millions of years have been converted to oil, gas, and coal. ... These fuels are made up of decomposed plant and animal matter.

Dmitrij [34]2 years ago

3 0

Oil is referred to as a fossil fuel because it is derived from fossils.

Fossil fuels are the result of dinosaur remains being put under pressure for millions of years.

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Pls just help me out the vid is 6 Chemical Reactions That Changed History; need help on no.6. I DON’T EVEN KNOW HOW TO SOLVE IT

GREYUIT [131]

Explanation:

HCL you can do it yourself .try again

4 0

2 years ago

Match each vocabulary term with the correct definition

Ilia_Sergeevich [38]

Answer:

Amplitude ----> C.) The distance from a crest or trough to the rest position on the horizontal axis

Crest ---> A.) The highest point of a wave

Destructive interference ---> E.) A situation in which the crest of one wave and the trough of another overlap, resulting in a wave that has a smaller amplitude than the original waves

Sound Wave ---> B.) A vibration transmitted through an elastic medium, such as a gas, liquid, or solid

Trough ---> D.) The lowest point of a wave

8 0

1 year ago

Read 2 more answers

In naming the compound PCl5, the prefix used with the second element is ____________________.

Oksanka [162]

Answer:

$\boxed {\boxed {\sf Hepta}}$

Explanation:

We are given the formula:

$PCl_5$

This is a molecular formula, because it contains nonmetals.

1. Name the first element

The first element is phosphorous (P). Since this is the first element and there is only one, we don't need a prefix.

Phosphorous

2. Second element

The second element is chlorine (Cl). It has a subscript of 5, so we must add the prefix of <u>hepta</u>-.

Phosphorous heptachlorine

Add the ending of -ide.

Phosphorous heptachloride

The prefix used for the second element is hepta. The compound name is phosphorous heptachloride.

6 0

2 years ago

when Jane drives to work, she always places her purse on the passengers seat. by the time she gets to work, her purse has fallen

marishachu [46]

Hmm, friction maybe? I guess it depends on how fast she stopped?

7 0

2 years ago

Give the reason why the empty crucible should be heated before starting the experiment

sdas [7]

To make sure no cracks are in the crucible and also to remove any moisture present in the crucible by the process of heating.

3 0

2 years ago