As you go down a group on the periodic table, the trend is that elements become less reactive

have the same level of reactivity

become more reactive

Match the following -

table salt- -Molecular Formula
NaCi- -Scientific Name
sodium chloride- -Common Name

Most of an atom is empty space. If an atom was the size of a sports stadium, what could be the size of the nucleus?

A hot air balloon

A golf ball

A basketball

A pea

The pressure in a fluid is affected by which characteristics of that fluid

Which explanation is true about what happens to a ray of light when it strikes a mirror? a. a light ray is transmitted toward a mirror at a certain angle. the light ray is then reflected by the mirror at an equal angle but in the opposite direction of the transmitted ray. b. an incident ray strikes a mirror at an angle with a line perpendicular to the mirror. the light ray is then reflected at an angle equal to the angle of incidence but on the opposite side of the perpendicular line. c. a reflecting ray strikes a mirror at an angle with a line perpendicular to the mirror. the light ray is then refracted at an angle equal to the angle of the reflecting ray and on the same side of the perpendicular line. d. an incident ray strikes a mirror at an angle with a line parallel to the mirror. the light ray is then transmitted at an angle equal to the angle of incidence but on the opposite side of the parallel line. you so much! : -d take the time to try and answer correctly.

Which of these is not an example of chemical weathering? a. iron-rich mineral rusting b. feldspar turning into clay c. limestone reacting with acid d. granite breaking up into sand