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3 years ago

Water that collects on the ground or in a body of water

Chemistry

2 answers:

Mashcka [7]3 years ago

5 0

Answer:

Groundwater

Explanation:

frez [133]3 years ago

5 0

Answer: groundwater

Explanation: Water that has gone down from the dirt surface and gathered in the spaces among dregs and the breaks inside stone is called groundwater

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given that the speed of light is 2.998 x 108 m/s, what is the frequency of a wave that has a wavelength of 3.55 x 10-8 meters

Vesna [10]

Frequency, f = v / λ

f = 2.998 * 10⁸ / 3.55*10⁻⁸

f = 8.445 * 10¹⁵ Hz.

8 0

2 years ago

Find the percentage composition of a compound that contains 1.94 g of carbon, 0.48 g of hydrogen, and 2.58 g of sulfur.

Svetradugi [14.3K]

Answer : The percentage composition of carbon, hydrogen and sulfur in a compound is, 38.8 %, 9.6 % and 51.6 % respectively.

Explanation :

To calculate the percentage composition of element in sample, we use the equation:

$\%\text{ composition of element}=\frac{\text{Mass of element}}{\text{Mass of sample}}\times 100$

Given:

Mass of carbon = 1.94 g

Mass of hydrogen = 0.48 g

Mass of sulfur = 2.58 g

First we have to calculate the mass of sample.

Mass of sample = Mass of carbon + Mass of hydrogen + Mass of sulfur

Mass of sample = 1.94 + 0.48 + 2.58 = 5.0 g

Now we have to calculate the percentage composition of a compound.

$\%\text{ composition of carbon}=\frac{1.94g}{5.0g}\times 100=38.8\%$

$\%\text{ composition of hydrogen}=\frac{0.48g}{5.0g}\times 100=9.6\%$

$\%\text{ composition of sulfur}=\frac{2.58g}{5.0g}\times 100=51.6\%$

Hence, the percentage composition of carbon, hydrogen and sulfur in a compound is, 38.8 %, 9.6 % and 51.6 % respectively.

3 0

2 years ago

What pH does an acid have?

Setler [38]

Answer:

The pH scale ranges from 0 to 14. A pH of 7 is neutral. A pH less than 7 is acidic. A pH greater than 7 is basic

Explanation:

5 0

3 years ago

What is the total amount of heat required to completely melt 347 grams of ice at its melting point?

Bogdan [553]

In order to calculate the amount of heat energy required to melt 347 grams of ice, we need to will apply the equation:
Q = ml, where m is the mass of substance and l is its latent heat of fusion. For ice, the latent heat of fusion is 334 joules per gram. Therefore:
Q = 347 x 334
Q = 112,558 joules of energy

Hope this helped.

7 0

2 years ago

The mass of a large order of french fries is about 170 G what is its approximate weight in pounds

kap26 [50]

Answer:

0.374 Pound Approximately

Solution:

Gram and Pound are related as,

1 Gram = 0.0022 Pound (approximately)

As we are given with 170 g of French Fries, so it can be converted into pounds as,

1 Gram = 0.0022 Pound

So,

170 Grams = X Pounds

Solving for X,

X = (170 Gram × 0.0022 Pounds) ÷ 1 Gram

X = 0.374 Pound Approximately

8 0

3 years ago