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
vodka [1.7K]
3 years ago
8

Hurry!!!!! Will Give Brainlist!!!!

Chemistry
2 answers:
Aleksandr-060686 [28]3 years ago
7 0

Answer:

Answer: a chemical Change, because a gas is being formed

Ipatiy [6.2K]3 years ago
5 0

Answer: B) A chemical change change, because a gas is being formed.

You might be interested in
consider the reaction between acetylene C2H2 and oxygen in a welding torch 2C2H2 + 5O2 = 4CO2 + 2H2O of 5.4 moles of acetylene r
Eddi Din [679]

Answer:

C. 4.8*10² g.

Explanation:

5 0
2 years ago
According to the Kinetic Molecular Theory, as the volume of a gas increases: the number of particle impacts per unit area increa
aliya0001 [1]

As the volume of a gas increases <em>at constant temperature</em>, the number of particle impacts per unit area decreases.

There is the same number of impacts, but they are spread over a larger surface area.

Thus, the number of impacts per unit area decreases.

7 0
3 years ago
Read 2 more answers
a chemist dissolves 0.564 moles of manganese (IV) oxide (MnO2) in water, and adds enough water to make 0.510 L of solution. Calc
ladessa [460]

Answer:

The molarity of the solution is 1.1 \frac{moles}{liter}

Explanation:

Molarity is a measure of the concentration of that substance that is defined as the number of moles of solute divided by the volume of the solution.

The molarity of a solution is calculated by dividing the moles of the solute by the volume of the solution:

molarity=\frac{number of moles of solute}{volume}

Molarity is expressed in units \frac{moles}{liter}

In this case

  • number of moles of solute= 0.564 moles
  • volume= 0.510 L

Replacing:

molarity=\frac{0.564 moles}{0.510 L}

Solving:

molarity= 1.1 \frac{moles}{liter}

<u><em>The molarity of the solution is 1.1 </em></u>\frac{moles}{liter}<u><em></em></u>

4 0
2 years ago
Which substance contains only 1 kind of atom
Nataliya [291]
Elements are substances that contain only 1 kind of atom.
8 0
3 years ago
Read 2 more answers
The ____________________ is done first so that you know how you want to go about your ____________________.
N76 [4]
We need a photoooooooo
8 0
2 years ago
Read 2 more answers
Other questions:
  • Menthol the substance we can smell in mentholated cough drops is composed of carbon, hydrogen and oxygen. A 0.1005 grams sample
    9·1 answer
  • A human zygote has 46 chromosomes. This number of chromosomes represents what in a human cell?
    7·1 answer
  • Compare the strength of the bonds that hold the atoms in a molecule together with the forces that exist between different molecu
    9·1 answer
  • What are the types of radioactive rays that can be produced during a radioactive decay?
    14·1 answer
  • When nitrogen, oxygen, fluorine, sodium, magnesium and aluminum ionize, they all will have:
    14·1 answer
  • 1) h2+o2 -&gt; h2o<br><br> does equation 1 follow the law of conservation of mass? how can you tell?
    10·1 answer
  • What does binding energy measure
    6·2 answers
  • Which are exmaples of chemical change?
    6·1 answer
  • The following experiment was performed: A white solid was added to a test tube containing water. The solid completely dissolved
    6·1 answer
  • Name the following : [Ni(NH3) 4(H2O)2(NO3)2​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!