2 years ago

A basketball weighs approximately 1.35 kg. What is this mass in grams (g)? step by step

Chemistry

1 answer:

choli [55]2 years ago

8 0

Answer:

1350 g

Explanation: just add a 0

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Some athletes have as little as 3.0% body fat. If such a person has a body mass of 67 kg , how many pounds of body fat does that

Elanso [62]

Data:
mass = 67 Kg → 147.71 pounds

Solving:

$\frac{3}{100}*147.71 = \frac{443.13}{100} \approx \boxed{4.43\:pounds\:of\:body\:fat}\end{array}}\qquad\quad\checkmark$

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3 years ago

A student carefully pipets 10.00ml of ethanol into a beaker. If ethanol has a density of 0.779g/ml, how many grams of ethanol we

lesantik [10]

Answer: 7.79 grams of ethanol were put into the beaker.

Explanation:

To calculate the mass of ethanol, we use the equation:

$\text{Density of substance}=\frac{\text{Mass of substance}}{\text{Volume of substance}}$

Density of ethanol = 0.779 g/mL

Volume of water = 10.00 mL

Putting values in above equation, we get:

$0.779g/mL=\frac{\text{Mass of ethanol}}{10.00mL}\\\\\text{Mass of ethanol}=(0.779g/mL\times 10.00mL)=7.79g$

Thus 7.79 grams of ethanol were put into the beaker.

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3 years ago

In terms of shape and volume, how can a gas be defined ?

Gnoma [55]

Particles in a gas are far apart compared to a solid or liquid, allowing it not to have a definitive shape or volume. This also means that gases can fill any container and be easily compressed.

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2 years ago

Why does soap decrease the surface tension of water?

e-lub [12.9K]

Answer:

Soap decreases surface tension by changing the way water behaves on the surface. Hard and soft water react differently when soap is added to them.

Explanation: i think it is this

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2 years ago

Calculating Density Warm Up

Artist 52 [7]

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Explanation:

33-25=8

48/8=6

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