All categories

3 years ago

Chemical Equations and Reactions WS

Chemistry

1 answer:

ruslelena [56]3 years ago

7 0

Answer:

1,1,1

decomposition reaction

Explanation:

The reaction equation is given as:

_Ca(OH)₂ → _CaO + _H₂O

This reaction is a decomposition reaction in which a single reactant breaks down to give two or more products.

To balance the equation, we assign variables a, b and c, then we use a mathematical approach to solve the problem;

aCa(OH)₂ → bCaO + cH₂O

Conserving Ca : a = b

O: 2a = b + c

H: 2a = 2c

let a = 1, b = 1 , c = 1

You might be interested in

If a snail crawls at 0.013 m/s north, how far will it travel in 60 seconds? Find time.

inessss [21]

It will have traveled 0.78 m. You find this by multiplying .013 by 60

8 0

3 years ago

Read 2 more answers

What is Charles’s law? State the definition of the law in words. What are the assumptions of Charles’s law? Write mathematical e

Leviafan [203]

Answer:

The volume of a given mas of a gas is directly proportional to the temperature if the pressure remains constant

V is directly proportional to T

V=1/T

V=constant/T

Explanation:

4 0

3 years ago

An aerosol can with a temperature of 292 K and a pressure of 1.25 atm was left outside in the sun on a hot summer day. The press

garik1379 [7]

Answer:

310.69K

Explanation:

Given parameters:

Initial temperature T₁ = 292K

Initial pressure P₁ = 1.25atm

Final pressure P₂ = 1.33atm

Unknown:

Final temperature T₂ = ?

Solution

To find the unkown, we need to apply the combined gas law. From the combined gas law, it can be deduced that at constant volume, the pressure of a give mass or mole of gas varies directly with the absolute temperature.

Since the same aerosol can is heated, the volume is constant.

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

Now, we have to make T₂ the subject of the formula:

T₂ = $\frac{P_{2} x T_{1} }{P_{1} }$

T₂ = $\frac{1.33 x 292 }{1.25 }$ = 310.69K

6 0

3 years ago

Which is a property of potassium (K)?

kumpel [21]

It is highly reactive and when it is kept in open it does react with the oxygen present in the surroundings and burns therefore it is kept immersed in kerosene and please thank me and if you need more comment

5 0

3 years ago

What describes a system that consists of sugar dissolving in water

ValentinkaMS [17]

<h3>♫ - - - - - - - - - - - - - - - ~<u>Hello There</u>!~ - - - - - - - - - - - - - - - ♫</h3>

➷ It is a solution or mixture

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

↬ ʜᴀɴɴᴀʜ ♡

6 0

3 years ago