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bulgar [2K]
2 years ago
5

Which describes the burning of fossil fuels?

Chemistry
2 answers:
Artist 52 [7]2 years ago
7 0

Hi there! Let's tackle this together.

The answer to the question is option A.

When fossil fuels mined from the ground are burned with fire and sometimes crude oil, it releases toxic fumes which cause global warming. The same toxic fumes that come from these fossil fuels come from plastic.

The answer is option A.

mars1129 [50]2 years ago
5 0
A is the correct answer
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The force of 20 N acts upon a 5kg block. What is the acceleration of the block?
charle [14.2K]

Answer:

<h2>The answer is 4 m/s²</h2>

Explanation:

The acceleration of an object given it's mass and the force acting on it can be found by using the formula

a =  \frac{f}{m}  \\

where

a is the acceleration

f is the force

m is the mass

From the question

f = 20 N

m = 5 kg

We have

a =  \frac{20}{5}  \\

We have the final answer as

<h3>4 m/s²</h3>

Hope this helps you

8 0
3 years ago
When baking cookies, what is one chemical change that takes place?
Alexus [3.1K]

Answer:

A. chocolate chips melting

Explanation:

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6 0
2 years ago
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Classify the following substances as acids or bases.
ella [17]
A=acid
B=it say neither it say it’s alkaline
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8 0
2 years ago
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Do gases have mass and weight?​
slega [8]

Answer:

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Explanation:

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7 0
3 years ago
TRIPLE POINTS!!! I NEED HELP!!! PLEASE EXPLAIN TOO!!! What is the energy of a quantum of light with a frequency of 4.31 x 1014 1
Lelechka [254]

Answer:

The answer is

2.86 \times  {10}^{ - 19}  \: J

Explanation:

The energy of a quantum of light can be found by using the formula

<h3>E = hf</h3>

where

E is the energy

f is the frequency

h is the Planck's constant which is

6.626 × 10-³⁴ Js

From the question

f = 4.31 × 10¹⁴ Hz

We have

E = 4.31 × 10¹⁴ × 6.626 × 10-³⁴

We have the final answer as

2.86 \times  {10}^{ - 19}  \: J

Hope this helps you

3 0
3 years ago
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