Question 1 If object A weighs 24 grams and has a volume of 3 mL and object B wei
ID: 843997 • Letter: Q
Question
Question 1
If object A weighs 24 grams and has a volume of 3 mL and object B weighs 14 g and has a volume of 7 mL, ________.
A is four times as dense as B
Question 2
In which of the following sequences are the metric system prefixes listed in order of decreasing size?
kilo, centi, nano
Question 3
A student cut 1200 pieces of copper wire, each wired weighed 1.769 grams. Calculate the total mass of the pieces of copper to the correct number of significant figures.
2123
Question 4
Which one of the following statements about atoms is correct?
Two kinds of atoms may be present in a homoatomic molecule.
Question 5
Which one of the following elements occupies position period 5 and group IIA in the periodic table?
Ga
Question 6
How many numbers will be in the coefficient when 0.0090110 is expressed in scientific notation?
3
A and B have equal densitiesExplanation / Answer
1.density of A is 4 times than B
2.kilo ,centi,nano
3.should have 4 significant digits (2120)
4.Free, isolated atoms are virtually never encountered in nature.
5.strontium(Sr)
6. ans is 4 (9.011*10^-3)
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