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Furkat [3]
3 years ago
10

A liquid is cooled during an investigation causing it solidify.Which of the following most likely occurred? A.Absorption of heat

Chemistry
1 answer:
mojhsa [17]3 years ago
6 0

Answer:

C. A physical change.

Explanation:

A liquid is cooled during an investigation causing it solidify.Which of the following most likely occurred?

A. Absorption of heat. NO. Heat was released.

B. A chemical change. NO. It was a physical change

C. A physical change. YES. The physical change is called solidification.

D. Formation of a new compound. NO. This would be a chemical change.

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Please help <br><br> 19.0 kg/0.021 m^3
irina1246 [14]

Answer:

904.8 kg / m3

Explanation:

19.0 kg/0.021 m^3 = 904.761905 kg / m3

6 0
2 years ago
Phosphagens are a group of molecules that includes creatine phosphate (in vertebrates), and arginine phosphate, lombricine, and
BARSIC [14]

Answer:

Phosphagen provides the needed energy for the muscle tissues which can not be immediately supplied by glycolysis or oxidative phosphorylation. They supply immediate but limited energy as sudden demands for lots of energy by the muscle tissues arise.

Explanation:

Phosphagens are high energy storage compounds majorly found in muscular tissue of animals.

They allow maintenance of the high energy phosphate stores in its normal concentration ranges which discard the problems associated with ATP-consuming reactions in these tissues as against the presence of adenosine triphosphate.

The muscle tissues are actively working and need constant supply of energy and the energy produced by glycolysis and oxidative phosphorylation might not sum up to the needs of the tissues. So therefore, phosphagens serve as a stand by mechanism for energy production for the tissues mostly during sustained muscle activity.

The man, the muscle cells' phosphocreatinine concentration is more than three times the concentration of ATP and represent a ready reserve of high energy phosphate that can be donated directly to Adenosine diphosohate to release energy.

Different organisms use different biomolecule as a phosphagen. Majority of animals use arginine as their phosphagen, chordates use creatinine, annelids use lombricine.

They all perform these similar functions described above.

5 0
3 years ago
What equation in the blast furnace extraction of iron is not a redox reaction?
Misha Larkins [42]

The decomposition of limestone CaCO3 > CaO + CO2

8 0
3 years ago
What causes a gas to act in a non ideal manner?
il63 [147K]
"The forces of attraction and the volume of the molecules" (as opposed to the volume of the container the gas is in).
8 0
3 years ago
How many grams are in 1 mole of Pb3(PO4)4?
kvasek [131]

Answer:

In 1 mol of Pb₃(PO₄)₄ occupies 1001.48 grams

Explanation:

This compound is the lead (IV) phosphate.

Grams that occupy 1 mole, means the molar mass of the compound

Pb = 207.2  .3 = 621.6 g/m

P = 30.97 .4 = 123.88 g/m

O = (16 .  4) . 4 = 256 g/m

621.6 g/m + 123.88 g/m + 256 g/m = 1001.48 g/m

6 0
3 years ago
Read 2 more answers
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