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USPshnik [31]
2 years ago
5

What is a semiconductor

Chemistry
2 answers:
natka813 [3]2 years ago
7 0

Answer:

a

Explanation:

I hope God it has to be 20 characters so here but I hope this right please have a god day

Law Incorporation [45]2 years ago
6 0

Answer:

The answer is "B. A conductor that has less conductivity than do metallic conductors."

Explanation:

I took the quiz on A P E X, and I got it right.

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Please help!
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a titration of 25.0mL of an x M hcl solution with 0.15M NaOH starts at a burette reading for NaOH of 0.20mL . Thr burette readin
VARVARA [1.3K]
Burette is a very accurate measuring instrument when adding solutions and has a measurement error of 0.05 mL. 
Small volumes of solutions can be transferred from the burette at a controllable rate. 
In this instance NaOH is in the burette.
Initial reading of NaOH is 0.20 mL 
end point is the point at which the chemical reaction reaches completion. In acid base reactions, end point is when all the H⁺ ions have reacted with OH⁻ ions. 
final reading of NaOH is 24.10 mL
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6 0
3 years ago
How many kilograms are in 4 moles of Na2CO3?
castortr0y [4]
First you need to find the amount of mass of Na2CO3 in one moles
(Use periodic chart)

Na= 22.99 x 2 = 45.98
C = 12.01
O = 16.00 x 4 = 64.00

Add the molar masses together to get 121.99

To find how many grams are in 4 moles, times 121.99 by 4
This gives you 487.96

But the questions asks for the answer to be in kilograms nor grams, to change into kilograms divide by 1000
This gets you the answer: 0.49 kg

6 0
3 years ago
What can the presence of suffixes such as -ite,-ate,or -de in a chemical name indicate?
laila [671]

Answer: Most polyatomic ions are -ate, related ions that have 1 fewer oxygen atom are -ite (must have at least 1 oxygen tho) and nonmetals are ide.

Explanation:

3 0
1 year ago
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