4-) Complete the sentences with the missing words: Physical and chemistry a) is everything that surrounds us, occupies a place in space, has mass and is perceived by the senses.
b) is a limited portion of matter.
c) The SPECIFIC properties can be .
d) Property that does not depend on the amount of matter present.
e) Matter is in 4 states.

Aquantity of gas has a volume of 1.5 m3 and an absolute pressure of 95 kpa. when the gas is compressed to a volume of 0.5 m3, what is the new absolute pressure of the gas? (assume that there’s no change in temperature.)

What are chlorofluorocarbons and what impact do they have on the atmosphere?

Which configuration would produce an electric current? a) rotate a coil of copper wire between two magnets. b) connect a wire between a copper and zinc strip sitting in a beaker of water. c) connect a wire to the (+) positive end of a battery and the other end to a light bulb. d) connect a wire to the negative end of a battery and the other end to a light bulb.