The chemical formula of a compound describes the elements the compound
contains and the - ANS
Ratio of the elements in
the compound
What is the symbol for the hydroxyl ion? - ANS
OH-
When scientists measure a liquid's resistance to flow , they are measuring the
liquid's - ANS
Viscosity
When sodium atoms form sodium ions they: - ANS
lose
electrons
A perpetual-motion machine can never be built because it is not possible to
eliminate - ANS
elasticity
Which of the following is a renewable source? - ANS
peanut oil
The filament in an electric light bulb is made from - ANS
tungsten
Which of the following is a non-renewable source? - ANS
Copper
What are the two main gases that make up stars? - ANS
hydrogen and helium The pet store had 6 puppies selling for $104 each and 12 kittens selling for $24
each today , only two puppies and eight kittens were left in dollar terms what was
the ratio of sales of puppies to kittens? - ANS 13:3
Before being painted, a concrete play area was marked off into squares and then
into triangles. For the square shown, what is the area of the triangular part
labeled XYZ? - ANS 16 sq ft
If a 5-foot post casts an 8-foot shadow at the same time that a nearby tree casts a
48-foot shadow , how tall is the tree? - ANS 30
If the population of a certain city increased 25% in two years, the new population
was what percent of the old? - ANS 125%
The price of salmon at a fish market is 5.40 per pound. This is 150% its cost at a
supermarket. How much would it cost per pound at the supermarket? - ANS
$3.60
"Prestige" most nearly means? (status, assurance, skepticism, consideration) -
ANS status