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LiRa [457]
3 years ago
11

Which of the following is an example of a change from gravitational potential

Chemistry
2 answers:
Elenna [48]3 years ago
6 0

Answer:

The speed of a roller coaster increases as gravity pulls it downhill and is greatest at its lowest point. Viewed in terms of energy, the roller-coaster-Earth system's gravitational potential energy is converted to kinetic energy

Doss [256]3 years ago
4 0

Explanation:

a ball held in the air is the example of a change from gravitational potential energy to kinetic energy.

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Why are being flammable and combustible considered to be chemical properties and not physical properties?
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Answer:

C. They change the substance into another substance.

Explanation:

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3 years ago
What is the transfer of heat by direct contact - occurs when the particles in a material collide with neighboring particles?
nignag [31]

Answer:

Conduction

Explanation:

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Maple syrup which comes from the sap of maple trees contains water and natural sugars its clear brown liquid and the sugar cant
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Maple syrup is a homogeneous mixture, because it's uniform in composition (sugar is uniformly dissolved in water). Homogeneous mixture can be separated by<span> taking advantage of the different properties of the individual components such as distillation, but not by filtration.</span>
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3 years ago
What ending is given for a compound that contains two elements and oxygen?
zlopas [31]

Answer:

C. -ide

Explanation:

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7 0
3 years ago
Read 2 more answers
If there are 1.55 x 1024 molecules of hydrogen peroxide (H2O2), what is the mass of the<br>sample? ​
bezimeni [28]

Answer:

87.54 g of H₂O₂

Explanation:

From the question given above, the following data were obtained:

Number of molecules = 1.55×10²⁴ molecules

Mass of H₂O₂ =.?

From Avogadro's hypothesis,

6.02×10²³ molecules = 1 mole of H₂O₂

Next, we shall determine the mass of 1 mole of H₂O₂. This can be obtained as follow:

1 mole of H₂O₂ = (2×1) + (2×16)

= 2 + 32

= 34 g

Thus,

6.02×10²³ molecules = 34 g of H₂O₂

Finally, we shall determine mass of H₂O₂ that contains 1.55×10²⁴ molecules. This can be obtained as follow:

6.02×10²³ molecules = 34 g of H₂O₂

Therefore,

1.55×10²⁴ molecules

= (1.55×10²⁴ × 34)/6.02×10²³

1.55×10²⁴ molecules = 87.54 g of H₂O₂

Thus, 87.54 g of H₂O₂ contains 1.55×10²⁴ molecules.

8 0
3 years ago
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