All categories

2 years ago

Question 18 (Essay Worth 8 points)

Chemistry

1 answer:

DENIUS [597]2 years ago

4 0

Yes, the law of conservation of mass holds.

Explanation:

In every chemical reaction, mass is always conserved. This implies that in chemical reaction, the process proceeds maintaining the same set of atom in the same proportion without new ones forming.

From the description given, decomposition of the Silver carbonate will produce a silver residue with the given mass.
The other mass that seems lost can be examined to be given off as carbon dioxide gas which is the other product of the reaction and oxygen.
Therefore, since the products are silver, carbon dioxide and oxygen, the remaining mass is that of the carbon dioxide and oxygen. It is not lost.

learn more:

brainly.com/question/6837993

brainly.com/question/8912651

#learnwithBrainly

You might be interested in

If an atom with a mass number of 27 has 14 neutrons,it is an isotope of which element

kkurt [141]

Answer:

the number of neutrons in above isotope = A - Z = 27 - 13 = 14. Note: The molar mass of aluminium, which is average of atomic masses of all isotopes = 26.981538 g/mol, since 13Al27 is the major isotope.

Explanation:

5 0

2 years ago

Read 2 more answers

At 35.0°c and 3.00 atm pressure, a gas has a volume of 1.40 l. what pressure does the gas have at 0.00°c and a volume of 0.950 l

Leona [35]

Answer : The pressure of gas will be, 3.918 atm and the combined gas law is used for this problem.

Solution :

Combined gas law is the combination of Boyle's law, Charles's law and Gay-Lussac's law.

The combined gas equation is,

$\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}$

where,

$P_1$ = initial pressure of gas = 3 atm

$P_2$ = final pressure of gas = ?

$V_1$ = initial volume of gas = 1.40 L

$V_2$ = final volume of gas = 0.950 L

$T_1$ = initial temperature of gas = $35^oC=273+35=308K$

$T_2$ = final temperature of gas = $0^oC=273+0=273K$

Now put all the given values in the above equation, we get the final pressure of gas.

$\frac{3atm\times 1.40L}{308K}=\frac{P_2\times 0.950L}{273K}$

$P_2=3.918atm$

Therefore, the pressure of gas will be, 3.918 atm and the combined gas law is used for this problem.

4 0

3 years ago

Read 2 more answers

I got stood up by this guy B R U H

ludmilkaskok [199]

What happened after that ? If you don’t mind me asking .

7 0

2 years ago

Read 2 more answers

The melting point of aluminum is about 660 °C. How many degrees above the boiling point of water is this temperature?

Arte-miy333 [17]

560 degrees above water

8 0

2 years ago

Which option is a mixture? A. potassium B. sugar C. water D. salad

PSYCHO15rus [73]

Answer:

D.Salad

Explanation:

A mixture is a substance that combines two or more substance that are physically combined. A mixture can be easily seperated by a physical means . A mixture is the combination of various substances that are not chemically combined .Examples of mixtures are cake and salad . The cake contains various substances like egg, flour and sugar. This mixture can be easily separated into it individual entities by a physical means .

Base on the option the only mixture among the option is salad . Salad is a a mixtures that combines substances like tomatoes , fruits and vegetable. The individual substances that makes up the salad can be easily separated.

Sugar is a compound . Water is a compound as it contains two elements and potassium is an element.

6 0

2 years ago

Read 2 more answers