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
Nastasia [14]
3 years ago
11

What evidence supports a conservation law?

Chemistry
1 answer:
True [87]3 years ago
3 0

Answer:

The answer is B.

Explanation:

The law of conservation of mass states that mass in an isolated system is neither created nor destroyed by chemical reactions or physical transformations.

According to the law of conservation of mass, the mass of the products in a chemical reaction must equal the mass of the reactants.

The law of conservation of mass is useful for a number of calculations and can be used to solve for unknown masses, such the amount of gas consumed or produced during a reaction.

You might be interested in
-. Is Electricity naturally produced in our environment.
andre [41]
Electricity is not a naturally occurring energy phenomenon like oil from the ground, but it must be created and refined at electrical power plants using other energy sources. The natural resources that create electric energy are usually non-renewable, with some exceptions.



Hope this helps
5 0
3 years ago
If water and hydrogen peroxide both consist of hydrogen and oxygen atoms, explain why they have different chemical and physical
lana [24]
Water and hydrogen peroxide are different compounds although they have the same kind of atoms. The molecular formula of water is H2O (two atoms of oxygen chemically bonded to one atom of oxygen). The molecular formula of hydrogen peroxide is H2O2, (each atom of oxygen is chemical bonded to one atom of H and other atom of O). So,<span> the presence of different chemical bonds leads to different products with different chemical properties.</span><span />
5 0
2 years ago
What is cement and who invented it?
Sonja [21]

Answer:

Cement is a combination of calcium, silicone, aluminum, iron and lots of other ingredients to make side walks, home made crafts, etc. The person who invented concrete is Joseph Aspdin.

Explanation:

5 0
3 years ago
How do scientists predict the polarity of molecules, the distribution of non-polar and polar molecules?
EastWind [94]

Answer:

Explanation:

Polar molecules interact with other molecules of similar polarity to form solutions. Non-polar molecules do not interact the same way.

8 0
2 years ago
Read 2 more answers
At what temperature (in C) will a sample of gas occupy 91.3 L if it occupies 45.0 L at 70.0°C? Assume constant pressure.)
sdas [7]

Solution is here,

for initial case,

temperature(T1)=70°C=70+ 273=343K

vloume( V1) =45 L

for final case,

temperature( T2)=?

volume(V2)= 91.3 L

at constant pressure,

V1/V2 = T1/T2

or, 45/91.3 = 343/ T2

or, T2= (343×91.3)/45

or, T2=695.9 K = (695.9-273)°C=422.9°C

5 0
2 years ago
Other questions:
  • A raindrop has a mass of 50. mg and the Pacific Ocean has a mass of 7.08 x 10^20 kg. what is the mass of 1 mole of raindrops? Ho
    13·2 answers
  • You wish to make a 0.435 M perchloric acid solution from a stock solution of 3.00 M perchloric acid. How much concentrated acid
    12·1 answer
  • Consider a 125 mL buffer solution at 25°C that contains 0.500 mol of hypochlorous acid (HOCl) and 0.500 mol of sodium hypochlori
    13·1 answer
  • Workers in coal mines use battery operated torch lights instead of lanterns. What is the reason?
    5·1 answer
  • Bleaching powder reaction, mechanism, use
    5·1 answer
  • calculate the standard potential arising from the reaction in which NADH is oxidized to NAD and the corresponding biological sta
    5·1 answer
  • Which of the following is NOT an advantage of a wireless network? convenience reliability security speed
    12·1 answer
  • When forming ions, nitrogen will gain or lose how many electrons, forming a cations or anions with a what charge?
    11·1 answer
  • Which of these items is a substance that is made from two or more different elements?
    7·2 answers
  • If the concentrations of a weak acid and its conjugate base are increased from 0.1 M and 0.05 M, respectively, to 0.2 M and 0.1
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!