QUESTIONS 1 points
A student measures the mass of a mineral sample. It is 125 grams. She then places the sample in a graduated cylinder containing water, as shown
below. What is the density of the mineral?
ml
250
ml
250
200
E200
150
150
100
100
50
50
A 3 g/cm3
B. A g/cm3
0.5 g/cm3
D.6 g/cm
QUESTION 10

According to periodic trend, which of the following most likely has the highest ionization energy? kr be ni sc

Which statement correctly describes metallic bonds? a. they form when certain atoms lose electrons and other atoms gain electrons. b. they involve an attraction between anions and cations. they always involvpoth a metal and a nonmetal. d. they can only form between atoms of the same element. e. they form because electrons can move freely between atoms.

When the mercury level in a barometer decreases that atmospheric pressure has