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Elis [28]
2 years ago
12

Can yall assist me with this lab? It is really screwing me up... No spam!! the only part that I need is the last page. I will ma

rk brainliest if you get it right.
Chemistry
1 answer:
kenny6666 [7]2 years ago
5 0

Answer:

What do you need help with?!

Explanation:

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ahrayia [7]

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they can carry cold arctic air, producing snow and freezing weather.

Explanation:

-w- hope it helps

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3 years ago
What is the chemical reaction when a gas, liquid, and solid mix? EASY POINTS ANSWER TO A BRAINLIEST
DanielleElmas [232]
I want to say physical change? i’m not quite sure, i hope this helps tho!
4 0
4 years ago
In which group of the Periodic Table do most of the elements exhibit both positive and negative oxidation states?
Shtirlitz [24]
C i think but you should pick it anyway
4 0
3 years ago
A chemical reaction that has a positive δg is best described as _____.
Ann [662]
A chemical reaction that has a positive g is best described as endergonic.
8 0
3 years ago
Limestone (CaCO3) is decomposed by heating to quicklime (CaO) and carbon dioxide. Calculate how many grams of quicklime can be p
Harman [31]

Answer: 2800 g

Explanation:

CaCO_3(s)\rightarrow CaO(s)+CO_2(g)

According to avogadro's law, 1 mole of every substance weighs equal to molecular mass and contains avogadro's number 6.023\times 10^{23} of particles.

\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}

Given mass = 5 kg = 5000 g

\text{Number of moles}=\frac{5000g}{100g/mol}=50moles

1 mole of CaCO_3 produces = 1 mole of CaO

50 moles of CaCO_3 produces =\frac{1}{1}\times 50=50moles of CaO

Mass of CaO=moles\times {\text{Molar mass}}=50moles\times 56g/mole=2800g

2800 g of CaO is produced from 5.0 kg of limestone.

3 0
3 years ago
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