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miv72 [106K]
3 years ago
8

Please help with this questio

Chemistry
2 answers:
MAXImum [283]3 years ago
8 0

Answer:

you didnt give the question

Explanation:

fredd [130]3 years ago
8 0

Answer:

What he said☝️

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The plants without any fertiliser could be the control, to see what the change in the independent variable (fertiliser) does to the growth of the plant (dependant variable).

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8 0
3 years ago
The form of energy that food contains is which of the following?
julia-pushkina [17]

Answer:

A. Chemical because there alot of chemicals that contains energy such as Carbohydrates which fruit and vegetables contain.

5 0
3 years ago
Question 8 (5 points)
Fynjy0 [20]

[H+][OH-]=10-¹⁴

We are using this formula because we need to find the H+

substitute the value given for hydronium ion for OH-

[H+][4.19×10⁵]=10-¹⁴

[H+]=10-¹⁴÷4.19×10⁵

[H+]=2.387×10-¹⁹

Then the pH of the solution will be

pH= –log¹⁰ [H+]

pH = –log¹⁰ [2.387×10-¹⁹]

pH= –log¹⁰2.387+19log¹⁰

= –0.378+19

pH =18.622

8 0
2 years ago
Can you pls tell me advantages and disadvantages of chemistry in specific ​
katrin2010 [14]

<em>Advantages</em>

Chemistry helps you to understand the world around you.

Basic knowledge of chemistry helps you to read and understand product labels.

Chemistry can help you make informed decisions.

Chemistry is at the heart of cooking.

A command of chemistry can help keep you safe!

<em>Disadvantages</em><em> </em>

It isn't a sustainable form of energy.

It can be expensive.

Some forms of chemical energy are quite rare.

It can produce harmful waste.

It can be used to create devastating weapons.

It offers short-term benefits for long-term consequences.

6 0
2 years ago
A metal ball of mass 100 g is heated to 90°C and then cooled to 25°C. The heat lost in the process is 2.5 kJ. Another metal ball
Harrizon [31]

Answer:

A. The balls are made of the same material

7 0
3 years ago
Read 2 more answers
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