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Leya [2.2K]
3 years ago
5

Please answer quickly

Chemistry
1 answer:
Nikolay [14]3 years ago
6 0
Pretty sure it’s a) Carbon, if not tell me.
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In this project, you will research the harm that can be done to your health by environmental factors. Using the resources of you
umka21 [38]
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3 0
3 years ago
things required for life, including heat, water, nutrients, salts and oxygen are called "___________ substances."
Contact [7]

Answer:

Vital

Explanation:

Hello! The factors mentioned previously are essential substances for the life and health of our bodies. Not only in humans, but also for animals. They are factors that are linked and contribute to physical and mental energy, growth and life. Are essentials because humans can't live without that.

Thanks for your question! Feel free to ask more!

3 0
3 years ago
Perform the given operation and report the answer with the appropriate number of significant figures. 4.910 km - 0.08 km = ?
Digiron [165]

Answer:

4.83 km

Explanation:

Let's consider the following subtraction.

4.910 km - 0.08 km

For an addition or a subtraction, the rule for significant figures is as follows: <em>limit the reported answer to the rightmost column that all numbers have significant figures in common</em>, in this case, 2 figures after the decimal point.

4.910 km - 0.08 km = 4.83 km

5 0
3 years ago
What is the frequency of a 670 nm light wave?
Morgarella [4.7K]
Nobody knows this answer I checked a bunch of websites and they all don't know the answer.
5 0
3 years ago
Read 2 more answers
A gas with a volume of 535 mL at a temperature of -25C is heated to 175C. What is the new volume of the gas if pressure and numb
MakcuM [25]

Answer:966.45ml

Explanation:

Using Charles law.. V1/T1=V2/T2

V1=535ml

T1=-25+273

=248k

T2= 175+273=448k

V2=?

V2= V1*T2/T1

V2=535*448/248

V2=239680/248

V2=966.45ml

5 0
4 years ago
Read 2 more answers
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