Which indicates that a chemical reaction has occurred? A. a broken egg sinks after its has been sitting out for several days. B. you smell gasoline when you remove the cap on a gas tank. C. an unripe orange on a tree doesn't smell at all

Which is a chemical property that can be used to identify calcium carbonate?

Green light can have a wavelength of 543 nm. the energy of a photon of this light is

34. Mars has two moons, Phobos and Deimos. Phobos has an orbital radius of 9.4 x 10° m and an orbital period of 0.32 days. Deimos has an orbital radius of 23.5 x 108 m. a. What is the orbital period of Deimos? b.

A hardworking ant must supply 0.00805 n to pull a small piece of fruit at constant velocity over a distance of 9.80 cm up a small hill to the entrance of the colony. if the coefficient of kinetic friction between the piece of fruit and the 15.

What is closely related to momentum

Which nitrogen base sequence is the partner of C-A-T-C-G-A? O C-A-T-C-G-A O G-T-A-G-C-T OT-G-C-T-A-G O G-C-A-T-G-T TI

What is the kind of energy that comes from movement?

The average kinetic energy of 1 mole of a gas at 273 degrees Celsius is: 6.81 x 103 J 3.40 x 103 J 1.51 x 103 J 6.72 x 101 J

Which one of the following crystal structures has the fewest slip directions and therefore the metals with this structure are generally more difficult to deform at room temperature? a. BCC b. FCC c. HCP d. BCT

To rid the body of wastes, including excess water and salts" is the purpose of what human body system? A) Digestive B) Excretory C) Skeletal D) Nervous