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vodomira [7]
3 years ago
7

Two descriptions about physical quantities are given below:

Chemistry
2 answers:
gladu [14]3 years ago
8 0

Answer:

Quantity A is weight and Quantity B is mass

Explanation: weight has same unit as force. Mass is the quantity of matter present in a body or object

Mumz [18]3 years ago
3 0

Answer:

Quantity A is weight and Quantity B is mass

Explanation:

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An object has a mass of 3.50 grams and a density of 5.61 g/mL. What is the volume of this object? *
Elina [12.6K]

Answer:

<h2>0.62 mL</h2>

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

volume =  \frac{mass}{density} \\

From the question we have

volume =  \frac{3.50}{5.61}  \\  = 0.6238859...

We have the final answer as

<h3>0.62 mL</h3>

Hope this helps you

5 0
2 years ago
Is alcohol evaporating a chemical or physical change
snow_tiger [21]
Physical change , the states are changing from liquid to gas
8 0
3 years ago
A bottle of coke is 250.0 mL. What is the volume in cubic centimeters?
hoa [83]

Answer:

The volume in cubic centimeters is 250

Explanation:

The rule of three or is a way of solving problems of proportionality between three known values and an unknown value, establishing a relationship of proportionality between all of them.

If the relationship between the magnitudes is direct, that is, when one magnitude increases, so does the other (or when one magnitude decreases, so does the other), the direct rule of three must be applied. To solve a direct rule of three, the following formula must be followed:

a ⇒ b

c ⇒ x

So:

x=\frac{c*b}{a}

The direct rule of three is the rule applied in this case where there is a change of units. To perform this conversion of units, you must first know that 1 mL = 1 cubic centimeters. So, if 1 cubic centimeters is 1 mL, how many cubic centimeters equals 250 mL?

cubic centimeters=\frac{250 mL*1 cubic centimeters }{1 mL}

cubic centimeters= 250

<u><em>The volume in cubic centimeters is 250</em></u>

3 0
3 years ago
True or false. adding more neutrons to a neutrally charged atom will not change the charge
san4es73 [151]
The statement is true.
6 0
3 years ago
The atomic number of an element indicates the number of?
marshall27 [118]

Answer:

The number is mostly related to the mass or the weight of the element.

Explanation:

6 0
3 years ago
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