Which of the following is an exothermic reaction?

a) dissolving ammonium nitrate in water to cool the water
b) dissolving sugar in water
c) melting ice
d) oxidation of iron

which of the following is an exothermic reaction?

a) dissolving ammonium nitrate in water to cool the water
b) condensation
c) dissolving sugar in water
d) melting ice

what type of substance would be best for use in a cooling system?

a) a liquid with a low specific heat
b) a liquid with a high specific heat
c) a solid with a high specific heat
d) a gas with a low specific heat

Aroller coaster car is traveling down a track at 22 m/s. the car has a mass of 2000 kg. what is the kinetic energy of the car? a) 22,000 j b) 968,000 j c) 484,000 j d) 44,000 j

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.

Select the word from the list that best fits the definition the nuclear family into which a person is born or adopted.