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Margarita [4]
3 years ago
12

FREE POINTS DONT FORGET TO GIVE A HEART ON MY ACCOUNT HELPS

Chemistry
2 answers:
fredd [130]3 years ago
8 0

Answer:

:) this is pretty cool my guy

Tju [1.3M]3 years ago
7 0

Answer:

pfffft-

Explanation:

Anime Pros like me, don't give hearts out, get real

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What makes a balloon electrically charged?
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C. Rubbing the balloon against your hair
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Scientific research can be controversial and is often ignored. Sometimes science is unable to answer particular questions.
JulijaS [17]
True final answer to this question

Sometimes they might not know
8 0
3 years ago
Hardness is directly related to:
stich3 [128]

Option B: Strength of chemical bonds

Hardness defines the strength, it can not be compared with surface roughness as a smooth surface can be harder or difficult to break than a rough surface. The mass and weight of a substance matters while comparing density of substance or how heavy it is but it is not directly proportional to the hardness of the substance. Thus, equal masses of two substance can not be considered equally hard. Hardness depends on the inter-molecular interaction or forces within a substance, if the inter-molecular interactions are strong or the strength of chemical bonds is strong then the substance is more hard.

Therefore, hardness is directly proportional to strength of the chemical bonds.

4 0
3 years ago
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How many grams of carbon dioxide are produced from the combustion of 250.G of ethane, C3H8 in the reaction C3H8 +5O2 - 3CO2 +4H2
ludmilkaskok [199]

Answer:

750 g of CO₂

Explanation:

The balanced equation for the reaction is given below:

C₃H₈ + 5O₂ —> 3CO₂ + 4H₂O

Next, we shall determine the mass of C₃H₈ that reacted and the mass of CO₂ produced from the balanced equation. This can be obtained as follow:

Molar mass of C₃H₈ = (12×3) + (8×1)

= 36 + 8 = 44 g/mol

Mass of C₃H₈ from the balanced equation = 1 × 44 = 44 g

Molar mass of CO₂ = 12 + (16×2)

= 12 + 32 = 44 g/mol

Mass of CO₂ = 3 × 44 = 132 g

SUMMARY:

From the balanced equation above,

44 g of C₃H₈ reacted to produce 132 g of CO₂.

Finally, we shall determine the mass of CO₂ produced by the reaction of 250 g of C₃H₈. This can be obtained as follow:

From the balanced equation above,

44 g of C₃H₈ reacted to produce 132 g of CO₂.

Therefore, 250 g of C₃H₈ will react to produce = (250 × 132)/44 = 750 g of CO₂.

Thus, 750 g of CO₂ were obtained from the reaction.

8 0
3 years ago
13. When pentane undergoes complete combustion, the products are carbon dioxide and water.
Yuki888 [10]

Answer:

i think c

Explanation:

:D

4 0
3 years ago
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