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
Delvig [45]
3 years ago
7

which of these statements best describes the law of conservation of mass A) when a physical or a chemical change occurs, matter

is not created or destroyed B) when a physical or a chemical change occurs, matter is created but not destroyed C) When a physical or a chemical change occurs, matter can be created and destroyed D) when a physical or a chemical change occurs, matter can be created but not destroyed
Chemistry
2 answers:
vampirchik [111]3 years ago
3 0
The statement which best describes the law of conservation of mass is A) when a physical or a chemical change occurs, matter is not created or destroyed. The law states that matter cannot be created or destroyed by ordinary chemical or physical changes, which means that <span>the mass of all the components of a chemical reaction can be measured before and after the change in order prove that the mass is constant. So, keep in mind that </span><span>the mass of participating products is always the same as the mass of all the reactants.</span>
Bess [88]3 years ago
3 0

Answer:

he or she was right the answer is A

i just took the test

You might be interested in
An easy way to assign the number of d-electrons (the “d count”) in a transition metal ion is to first look at the periodic t
Lorico [155]
Chromium is in Group 6, so elemental chromium has 6 valence electrons. Therefore, chromium 3+ has three 3d-
6 0
3 years ago
A diver has 3,400 J of gravitational potential energy after climbing
Zanzabum

Answer:

57.8kg

Explanation:

Potential energy is given by:

U =mgh

Where U is potential energy, m is mass, g is acceleration due to gravity, and h is height. Using this equation:

3400=m(9.8)(6)\\3400=58.8m\\m=57.8kg

3 0
2 years ago
How to balance this equation
Svetlanka [38]

Answer:

2Al + 3Ni(SO4) ------->   1Al2(SO4)3 +  2Ni

Explanation:

7 0
3 years ago
Read 2 more answers
PbSO4 → PbSO3 + O2<br> Balance the equation
erastova [34]

Answer:

2PbSO4 → 2PbSO3 + O2

Explanation:

in original equation we notice that we have one extra oxygen, which we cannot form a O2 with, so by multiplying everything else by 2, we get 2 extra oxygen

5 0
3 years ago
• What is produced at the end of the cell cycle? How do they compare to each other and
olga2289 [7]

Answer:

At the end of cell cycle (mitosis replication), two daughter cells are produced. Each contains exactly the same number of DNA content.

6 0
3 years ago
Other questions:
  • Which of the following would you expect to see in the death of a star that is less than 0.5 solar mass
    14·2 answers
  • If 82.3 l of an ideal gas is cooled from 46 degrees calius to -166 what will the volume of the gas become
    6·1 answer
  • Silicones are ________. Select one: A. flat sheets of silicon and hydrogen atoms B. flat sheets of silicon atoms C. chains of al
    7·2 answers
  • Which temperature scale would read the highest number for boiling water? A. Kelvin B. Celsius C. Fahrenheit
    6·2 answers
  • Consider these ground-state ionization energies of oneelectron species:
    10·1 answer
  • The maximum number of energy sublevels found in any energy level at ground state is: 4 2 6 3
    11·1 answer
  • Suggest two reasons why the maximum allowed percentage of carbon monoxide
    10·1 answer
  • Renewable resources are considered clean because they don't cause what
    9·1 answer
  • does the character of a bond become more covalent or ionic when the difference in electronegativity of the bonded atoms increase
    15·1 answer
  • If there is no change in concentrations, why is the equilibrium state considered dynamic?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!