I have a paper clip, scissors, needle, and a horseshoe. All made of the same metal. Which physical property is not similar in all four of these objects? A. Mass
B. Magnetism
C. Specific heat
D. Electrical conductivity

As air becomes more dense, (select all that apply) o. air weighs less o. gas molecules are closer together o. air is colder o. air weighs more o. gas molecules are further apart o. air is hotter

If 22.5 liters of oxygen reacted with excess of hydrogen, how many liters of water vapor could be produced?

What rule is used to determine how many covalent bonds an element can form? a. the number of covalent bonds is equal to six c the number of covalent bonds is equal to five minus the group number plus the group number b. the number of covalent bonds is equal to eight d. none of the above minus the group number select the best answer from the choices provided