A car travels a distance of 60 kilometers in 2 hours. What is it's speed in kilometers per hour

6. What happens to the arrangement of water molecules as ice melts? A Molecules gain enough energy to move from their fixed positions. OB Molecules release enough energy to escape as vapor. O C Molecules gain enough energy to escape as vapor.

What was Ernest Rutherford's contribution to our understanding of atomic structure? A.) He discovered the existence of a center to the atom. B.) He discovered the mass of the electron. C.) He discovered the electron. D.) He discovered the neutron.

Loam is a soil texture that is composed of what

A liquid that occupies a volume of 4.7 liters has a mass of 5.1 kilograms what is the density of the liquid in kg/L

How much energy is needed to melt 25.4 grams of l2

What is the molality if 734 mol of lithium sulfate are dissolved to make 2500 kg of solution. a) 0.59 b) 0.29 c) 293.6 d) 29.4

Since the number of atoms in a substance is so large, a unit to count them was created. This unit is the number of atoms in 12 grams of carbon-12 known as

A disadvantage of sexual reproduction is that

A beaker contains 500 ml of 2.40M KNO3 the beaker is left uncovered so that all of the water evaporates. What mass of KNO3 crystals will remain in the beaker when the beaker is dry.

What are group 6a elements likely to do when they form ions-gain electrons or lose them? what are group 6a elements likely to do when they form ions-gain electrons or lose them? lose electronsgain electrons?