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RoseWind [281]
2 years ago
8

GIVING BRAINLY, 5 STARS, FOLLOW AND HEARTSas majority of substances heat up, they:​

Chemistry
1 answer:
melamori03 [73]2 years ago
3 0

Answer:

Expand

Explanation:

When you heat up a substance it expands

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If an atom has 12 protons, 13 neutrons, and 10 electrons, what charge would the atom have?
andrew11 [14]
It would be a positive ion
3 0
3 years ago
Ca(OH)2 (s) precipitates when a 1.0 g sample of CaC2(s) is added to 1.0 L of distilled water at room temperature. If a 0.064 g s
borishaifa [10]

Answer:

Ca(OH)2 will not precipitate because Q<Ksp

Explanation:

Ksp for Ca(OH)2 has already been stated in the question as 8.0 x 10-8mol2dm-6

The value of the reaction quotient depends heavily on the concentration of the reactants. As the initial concentration of the calcium carbide decreases considerably, the reaction quotient decreases until Q<Ksp hence the Ca(OH)2 will not precipitate from solution.

The reaction equation is:

CaC₂(s) + H₂O ⇒ Ca(OH)₂ + C₂H₂

From

Ca(OH)2= Ca2+ + 2OH-

Concentration of solution= 0.064×1/64= 1×10-3

Since [Ca2+] = 1×10-3

[OH-]= (2×10-3)^2= 4×10^-6

Hence Q= 4×10^-9

This is less than the Ksp hence the answer.

4 0
2 years ago
What alkene(s) would be produced from the dehydration of cyclopentanol?
Ronch [10]
The dehydration of cyclopentanol is shown in the balanced equation below:

Cyclopentanol => cyclopentene + H2O

Therefore, the alkene produced from the dehydration of cyclopentanol is cyclopentene. 

The OH group is removed from the compound resulting to an alkene, cyclopentene. <span />
7 0
3 years ago
What might be a scientific question
AURORKA [14]

Answer:

Example of a scientific question:

Does the angle of a ramp change the distance a toy car will travel?

Explanation:

3 0
1 year ago
How many grams are in 3.00 moles of carbon
sergiy2304 [10]

Answer: Ok I think The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles Carbon, or 12.0107 grams. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between moles Carbon and gram. 12 grams

This means that the atomic mass or atomic weight (12 grams) of carbon is equal to exactly 1 mole of carbon.

hope this helps have a awesome night/day❤️✨

Explanation:

6 0
3 years ago
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