What is the molecule shown below?
1 answer:
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Answer:
The Density of the cube of metal is 2.675g/mL or 2675kg/mL.
Explanation:
Given the following data;
Mass of metal = 1.45kg to gram (g) = 1.45 × 1000 = 1450g
Volume of the cube of metal = 542mL
Density = ?
Density can be defined as mass all over the volume of an object.
Simply stated, density is mass per unit volume of an object.
Mathematically, density is given by the equation;
Substituting into the equation, we have;
<em>Density = 2.675g/mL</em>
In kilograms, the density is 2.675 x 1000 = 2675kg/mL.
Explanation:
- The rule apply for the multiplication and division is :
The least number of significant figures in any number of the problem determines the number of significant figures in the answer.
- The rule apply for the addition and subtraction is :
The least precise number present after the decimal point determines the number of significant figures in the answer.
a) 12.3 mm × 15.853 mm :
Three significant figures.
b) 72.98 · 15.830 ml
Three significant figures.
c) 12.3 mm + 15.853 mm
Three significant figures.
d) 172.3 cm - 15.853 cm
Four significant figures.