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horrorfan [7]
3 years ago
13

Which of the following pH numbers are basic? (Choose 2) 11 5 7 9

Chemistry
1 answer:
timama [110]3 years ago
8 0

Answer:

7 is the only basic number on a pH scale

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In an oven, 7000 kg of limestone are heated to over 900ºC to give lime and carbon dioxide. Assuming all calcium carbonate reacts
kirill [66]

Answer:

3920kg of lime(CaO)   1568m^3 of CO2

Explanation:

I attached the explanation!

also for calculating the volume I assumed Standard Temperature and Pressure(STP).

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Which of the following are changing when a change of state is occurring?
Greeley [361]

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What are the options?

Explanation:

7 0
3 years ago
What about these questions
Oksanka [162]
Again great job! They all look correct except 20. is 3.7 due to sig fig of least precision, which you have a mark by!! You don't even need help!;) Here comes the next chemical engineer! :)
4 0
4 years ago
What term describes a substance that does the dissolving
NARA [144]
 A <span>substance that does the dissolving is called a </span>solute. 
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3 years ago
Which is a true statement about an exterior angle of a triangle?
wolverine [178]

The only true statement about an exterior angle of a triangle from the above is that it forms a linear pair with one of the interior angles of the triangle.

<h3>What is a triangle?</h3>

A triangle can be defined as a one of the plane shapes which has three sides and three angles

So therefore, the only true statement about an exterior angle of a triangle from the above is that it forms a linear pair with one of the interior angles of the triangle.

Learn more about triangles:

brainly.com/question/2217700

#SPJ1

7 0
2 years ago
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