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KiRa [710]
3 years ago
6

The sum of two number is 50,and their difference is 30.find the sum​

Chemistry
2 answers:
Alexeev081 [22]3 years ago
5 0

Answer:

40 and 10

Explanation:

kompoz [17]3 years ago
4 0

Answer:

40 and 10

Explanation:

40 plus 10 is 50 40 minus 10 is 30

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The term came from late 18th century from French.
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Ion<br> If we add an electron to a stable element we call it a(n)_____ion<br><br> anion<br> cation
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Suppose Gabor, a scuba diver, is at a depth of 15m15m. Assume that: The air pressure in his air tract is the same as the net wat
alexandr1967 [171]

Answer:

The ration of molar concentration is "2.5".

Explanation:

The given values are:

Average density of salt water,

= 1.03 \ g/cm^3

Net pressure,

= 2.00 \ atm

Increase in pressure,

= 1.00 \ atm

Now,

The under water pressure will be:

=  \frac{15 \ m}{10}\times 1 \ atm +1 \ atm

=  1.5\times 1+1

=  1.5+1

=  2.5 \ atm

hence,

The ratio will be:

=  \frac{(\frac{n}{V})_{15m} }{(\frac{n}{V})_{surface} }

or,

=  \frac{P}{P_s}

=  \frac{2.5}{1}

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7 0
3 years ago
How does an object become electrically charged?will give brainliest
ICE Princess25 [194]

Answer:

It is Though the transfer of charges from one object to another, or (A).

3 0
3 years ago
The density of ethanol, a colorless liquid that is commonly known as grain alcohol, is 0.798 g/mL Calculate the mass of 205 mL o
katovenus [111]

Answer:

Mass of 205 mL of the liquid is 164 g

Explanation:

We know, density=\frac{mass}{volume}

Here density of liquid is 0.798 g/mL and volume of liquid is 205 mL

So, mass of liquid = density\times volume

                              = (0.798 g/mL)\times (205 mL)

                              = 164 g

hence mass of 205 mL of the liquid is 164 g.

8 0
4 years ago
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