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Arisa [49]
3 years ago
7

a substance did not change its chemical nature in a reaction. which most likely describes the reaction

Chemistry
2 answers:
Mkey [24]3 years ago
5 0
This substance most likely is an inert. It is a substance that is not chemically reactive. It does not change its chemical nature in a reaction. It does not <span>easily react with other chemicals. Most of the group 8 gases in the periodic table are classified as inert, due to their having full outer electron shells. </span>
Orlov [11]3 years ago
5 0

the answer is that "it was frozen"

I just took the test and got it right, hope it helps.

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Which of the following characteristics do all unicellular organisms share?
Serhud [2]
Unicellular organisms...

Contain a single cell in their body

Do not contain membrane bound organelles

Use simple diffusion as a transport mechanism

All cellular processes are carried out by the single cell

Only visible under the microscope

Injury in the cell leads to the death of the organism

Asexually reproduce by binary fission

Sexually reproduce by conjugation

Lifespan is comparatively short

3 0
2 years ago
ASAP I AM GIVING BRAINLIEST PLEASEEEEEEEEE HELPPPPPPPPPPPPPPPPPP
zepelin [54]

Answer:

B?

Explanation:

In the example, the amount of hydrogen is 202,650 x 0.025 / 293.15 x 8.314472 = 2.078 moles. Use the mass of the hydrogen gas to calculate the gas moles directly; divide the hydrogen weight by its molar mass of 2 g/mole. For example, 250 grams (g) of the hydrogen gas corresponds to 250 g / 2 g/mole = 125 moles.

7 0
3 years ago
Thermal energy always moves from a greater energy level to a lesser energy level
Nookie1986 [14]

Answer:

\fbox{Law -Based \: on \: laws \: of \: thermodynamic}

Explanation:

At constant pressure Thermal energy always moves from a greater energy level to a lesser energy level, laws of thermodynamics prove that.

Nature always likes to attain equilibrium either it's movement of heat energy or flow of water from higher region to lower region. The first and second law of thermodynamics are profe of that, the first law says that the total energy of universe is Constant. Energy can not be destroyed it always changes from one form to another, by work and heat. The second law explains why thermal energy moves from a greater energy level to a lesser energy level, it deals with the change in entropy of a system and surrounding and states heat flows from hot environment to cold environment.

<em><u>Thanks for joining brainly community!</u></em>

6 0
2 years ago
Molecules that contain nothing but hydrogen and carbon are
romanna [79]
Hydrocarbons. They usually burn. In fact, I can't think of one that does not.
4 0
3 years ago
T/F
kifflom [539]
True. Nuclear fusion of hydrogen to form helium occurs naturallyin the sun and other stars. It takes place only at extremely high temperatures.
8 0
3 years ago
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