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enyata [817]
2 years ago
6

Hydroxide is an example of _______ and it's formula is OH-.

Chemistry
1 answer:
Ksju [112]2 years ago
6 0

Answer:

polyatomic ion

Explanation:

It is polyatomic ion have a great day marry christmass

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Pipettes are used when measuring the volumes of liquids with high degree of precision. The following volumes were obtained durin
never [62]

Answer:

0.075

Explanation:

First obtain the mean of the measurement;

Mean = 10.15 + 9.95 + 9.99 + 10.02/4 = 10.03

Then obtain d^2= (mean-score)^2 for each score;

(10.15-10.03)^2 = 0.0144

(9.95-10.03)^2 = 0.0064

(9.99-10.03)^2 = 0.0016

(10.02-10.03)^2= 0.0001

∑d^2= 0.0144 + 0.0064 + 0.0016 + 0.0001

∑d^2= 0.0225

Variance = ∑d^2/N = 0.0225/4 = 0.005625

Standard deviation= √0.005625

Standard deviation= 0.075

6 0
3 years ago
Calculate the number of moles in 3.01 x 10²² atoms of calcium.​
Lera25 [3.4K]

Answer:

Using dimensional analysis:

3.01x1022 molecules CO2 x 1 mol CO2/6.02x1023 molecules x 44. g CO2/mole = 2.20 g CO2

Explanation:

8 0
2 years ago
Help! I don't have the things to do this and its due TODAY! Could someone help me?
vodomira [7]

Answer:

--- The hot air inside the bottle creates an expansion and when the hot water is applied a contraction occurs, thus causing the balloon to be sucked.

--- An internal pressure is produced, joining the heat begins to decrease. As a consequence, the air molecule causes the balloon to enter the bottle thanks to the effect of the external pressure.

Explanation:

I hope I have helped with something.

4 0
3 years ago
Read 2 more answers
Consider a closed containing a solid in equilibrium with its vapor. The volume of the solid is much less than that of the contai
Furkat [3]

Answer:

Explanation:

check the attachment below

5 0
2 years ago
What are the processes for the 3 types of weathering
sweet [91]
The processes for the 3 types of weathering are,
biological: rocks worn down by plants  
physical: water freezing and thawing in cracks of rocks 
chemical: Acid rain
Hope this helped!!
 

7 0
3 years ago
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