1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
12345 [234]
3 years ago
5

This is due tomorrow... :How can you tell the mass was conserved in a chemical reaction?

Chemistry
1 answer:
kipiarov [429]3 years ago
3 0

Answer:

Matter cannot be created or destroyed in chemical reactions. This is the law of conservation of mass. In every chemical reaction, the same mass of matter must end up in the products as started in the reactants. Balanced chemical equations show that mass is conserved in chemical reactions.

Explanation:

hope this help :)

You might be interested in
How does this article relate to me?
mario62 [17]
I cant help unless there is an article..
4 0
3 years ago
Read 2 more answers
Convert 10 liter into m3.
stellarik [79]
0.01 cubic meters
Hope this helps
3 0
3 years ago
Read 2 more answers
Which solute would be more effective at lowering the freezing point of water: MgCl2 and KNO3? Explain.
Phantasy [73]

Answer:

AlCl₃.

Explanation:

Adding solute to water causes depression of the boiling point.

The depression in freezing point (ΔTf) can be calculated using the relation:

ΔTf = i.Kf.m,

where, ΔTf is the depression in freezing point.

i is the van 't Hoff factor.

van 't Hoff factor is the ratio between the actual concentration of particles produced when the substance is dissolved and the concentration of a substance as calculated from its mass. For most non-electrolytes dissolved in water, the van 't Hoff factor is essentially 1.

Kf is the molal depression constant of water.

m is the molality of the solution (m = 1.0 m, for all solutions).

(1) NaCl:

i for NaCl = no. of particles produced when the substance is dissolved/no. of original particle = 2/1 = 2.

∴ ΔTb for (NaCl) = i.Kb.m = (2)(Kf)(1.0 m) = 2(Kf).

(2) MgCl₂:

i for MgCl₂ = no. of particles produced when the substance is dissolved/no. of original particle = 3/1 = 3.

∴ ΔTb for (MgCl₂) = i.Kb.m = (3)(Kf)(1.0 m) = 3(Kf).

(3) NaCl:

i for KBr = no. of particles produced when the substance is dissolved/no. of original particle = 2/1 = 2.

∴ ΔTb for (KBr) = i.Kb.m = (2)(Kf)(1.0 m) = 2(Kf).

(4) AlCl₃:

i for AlCl₃ = no. of particles produced when the substance is dissolved/no. of original particle = 4/1 = 4.

∴ ΔTb for (CoCl₃) = i.Kb.m = (4)(Kf)(1.0 m) = 4(Kf).

So, the ionic compound will lower the freezing point the most is: AlCl₃

4 0
3 years ago
Read 2 more answers
Calculate the percent composition by mass of iron in Fe(NO3)3
Dovator [93]

Answer:

It's 23.14 percent

Explanation:

First, the mass of all the elements are:

N = 14

O = 16

Fe = 56

In this molecule you have 3 atoms of N, and 9 atoms of O, so:

3•14 = 42

16•9 = 144

The whole mass of the molecule is:

56 + 42 + 144 = 242

242/100 = 2.42, so 1% is 2.42

56/2.42 = 23.14%

6 0
3 years ago
Which of these is a result of selective breeding?
ankoles [38]
It is a better way to a
5 0
2 years ago
Other questions:
  • Why is dilute, not concentrated, hydrochloric acid used during preparation of cyclohexaanol?
    9·1 answer
  • Which measurement describes the pressure of a gas?
    13·1 answer
  • How do you convert 0.85 atm to mmHg
    5·1 answer
  • Which of the following is NOT an example of potential energy?
    11·1 answer
  • A child’s bike containing 5.25 kg of iron rusts according to the thermochemical equation shown here:
    15·1 answer
  • Which acide will have more strength<br>out of two acids of pH<br>value 2<br>and 5 why<br>​
    8·1 answer
  • What type of rock forms when heat or pressure change an existing rock?
    5·1 answer
  • Which of the following best describes a single replacement reaction?
    14·1 answer
  • Please answer quick
    9·1 answer
  • Consider the following genotype Yy Ss Hh
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!