Answer:
Explanation:
The formula of density is:
If the formula is rearranged for volume, it becomes:
The mass of the platinum is 38.5 grams.
The density is 21.5 grams per cubic centimeter.
Substitute the values into the formula.
Divide. Note that the grams (g) will cancel each other out.
Round to 2 decimal places (hundredth place). The 0 in the thousandth place tells us to leave the 9 in the hundredth place.
The volume is about <u>1.79 cubic centimeters.</u>
Though all the options aren't visible i think she tried to find out the force friction at different surfaces.
Just divide 675 by the atomic number of cesium and you will end up with
5.078798426627975
Explanation:
Given parameters:
Density of silver = 10.5g/cm³
Volume of silver given = 4mL
Unknown:
Mass of silver = ?
Solution:
Density of a substance can be expressed as its mass per unit volume
Density =
we need to convert our volume to cm³ from mL;
1cm³ = 1mL
So 4mL = 4cm³
input the values in;
Mass = density x volume = 10.5 x 4 = 42g
learn more:
Density brainly.com/question/8441651
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Answer:
3
Explanation:
Resonance is a valence bond concept put forward by Linus Pauling to explain the fact that the observed properties of a molecule may be as a result of the fact that its actual structure lie somewhere between a given number of structural extremes called canonical structures or resonance structures.
There are three resonance structures for SO3 that obey the octet rule. All the S-O bonds in SO3 are equivalent in these resonance structures.