Which of the following substances most likely contains a covalent bond? Check all that apply. * 10 points
Bronze, a metallic alloy
Cu
Ti
MgSO4
C6H6
BCl3
Pb
MnO2
KOH
Brass, a metallic alloy
NH3
S2Br2
H2O
Al
C8H18
NaCl
CCl4
N2O4
Al(OH)3
CaCO3
C12H22O11
NaHCO3
Steel, a metallic alloy
K3PO4
NF3

The famous scientist galileo galilei did several experiments with sloping planes, which he rolled metal balls down so that he could study motion. by changing the slope, he could study how the speed at which the ball rolled was affected. what was the independent variable in galileo's experiment? a. the speed of the ball b. the slope of the plane c. whether the ball moved d. what the ball was made of