HELPP!! Two students are playing on skateboards. The first student and their skateboard have a combined mass of 99.2. kg. The second student and their skateboard have a
combined mass of 42.3 kg. The two students stand still on their skateboards facing
each other and then push off on each other as hard as they can.

Will mark brainliest 26. which of these statements are true? (3 points) a. gases are compressible b. gases fill their containers completely c. the pressure of a gas is independent of the temperature d. gases have mass e. gases exert pressure f. the pressure of a gas is dependent on the volume g. gas pressure results from the collisions between gas particles h. gases have a definite volume and shape

This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.

Which element has the lowest electronegativity? calcium(ca) gallium(ga) selenium(se) bromine(br)