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vredina [299]
2 years ago
12

Quicklime is an incredibly caustic substance that has been used during plagues to quickly dissolve diseased corpses. Calcium car

bonate can be heated to produce quicklime (CaO) and carbon dioxide gas. What mass of quicklime could be produced from a 4,500g bag of calcium carbonate?
Chemistry
1 answer:
Mazyrski [523]2 years ago
6 0

Answer:I just want points

Explanation:because I need them for future questions

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A child has a toy balloon with a volume of 1.80 L. The temperature of the balloon when it was filled was 293 K at a pressure of
Mekhanik [1.2K]

Answer:

2.42L

Explanation:

Given parameters:

V₁  = 1.8L

T₁ = 293K

P₁  = 101.3kPa

P₂ = 67.6kPa

T₂  = 263K

Unknown:

V₂ = ?

Solution:

To solve this problem, we are going to use the combined gas law to find the final volume of the gas. The combined gas law expression combines the equation of Boyle's law, Charles's law and Avogadro's law;

               \frac{P_{1} V_{1} }{T_{1} }   = \frac{P_{2} V_{2} }{T_{2} }

All the units are in the appropriate form. We just substitute and solve for the unknown;

         101.3 x 1.8 / 293    =     67.6 x V₂  /  263

          V₂   = 2.42L

7 0
3 years ago
How would you expect a positive particle approaching another positive particle to behave?
JulijaS [17]

Answer:

They would produce a repulsive force to another

Explanation:

A positive particle approaching another positive particle will repulse it.

According to coulomb's law "like charges repel one another and unlike charges attract".

A charge is an intrinsic property of any matter.

When like charges e.g positive and positive or negative and negative charges are in the vicinity of one another, they repel each other.

When unlike charges; positive and negative are brought together, they simply attract one another.

Therefore, we expect that a positive particle approaching another positive particle will repel one another.  

8 0
3 years ago
How does energy change when you eat food?
iris [78.8K]
It changes to chemical energy
5 0
3 years ago
2NO(g) + O2 (g) --> 2NO2
Lorico [155]
Take 46g / 46 g/mol = 1 mol NO2 produced
1 mol * 1/2 = 0.5 mol O2 needed  (1/2 ratio between NO2 and O2)
4 0
2 years ago
A student wants to increase the rate at which his powdered drink dissolves in water.
Neporo4naja [7]

Answer:

A Increase the temperature of water

Explanation:

You can look on sciencing.com for expanation

4 0
2 years ago
Read 2 more answers
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