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3 years ago

Is conversating a word? I am trying to prove a point to my friend that conversate is not a word

Chemistry

1 answer:

Andru [333]3 years ago

4 0

Conversating and conversate are actual words

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What is the mass of arsenic that is contained in a 50.0 g sample if the concentration is 5 ppm?

faltersainse [42]

Answer: The mass of arsenic found in the sample is 0.25 mg

Explanation:

ppm is the amount of solute (in milligrams) present in kilogram of a solvent. It is also known as parts-per million.

To calculate the ppm of oxygen in sea water, we use the equation:

$\text{ppm}=\frac{\text{Mass of solute}}{\text{Mass of solution}}\times 10^6$

Both the masses are in grams.

We are given:

Concentration of arsenic = 5 ppm

Mass of sample = 50 g

Putting values in above equation, we get:

$5=\frac{\text{Mass of arsenic}}{50g}\times 10^6\\\\\text{Mass of arsenic}=\frac{5\times 50}{10^6}=0.00025g=0.25mg$

Conversion factor used: 1 g = 1000 mg

Hence, the mass of arsenic found in the sample is 0.25 mg

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3 years ago

What is the total number of sublevels in the fourth principal energy level

Yuki888 [10]

The answer is 4. It can hold 4 sublevels as s.p,d,f and it holds 32 electrons

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3 years ago

PLS HALP ASAP points

marishachu [46]

Answer:

50 N ( left)

Explanation:

Given data:

The force on right side = 450 N

The force on left side = 500 N

Net force = ?

Solution:

F (net) = 500 N - 450 N

F (net) = 50 N ( left)

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2 years ago

Do electric or magnetic fields affect the x-rays?

Levart [38]

Electric and magnetic fields do not affect xrays as they only affect charged particles and xrays have no charge

hope that helps

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3 years ago

Which is NOT an example of a solution?

USPshnik [31]

C table snap Lt it is a compound

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3 years ago

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