11. How many elements are in the second period, or row, of the periodic table

a. 1

b. 2

C. 8

d. 18

These mystery elements are at the top of their families on the periodic table. An element that is in the same family as element C is likely to have which properties?

Classify the following as either a specific or a nonspecific defense of the body's immune system. - skin - macrophages - bacteria - mucous - fever - B cells - T cells - antibodies

The former soviet union launched the first artificial earth satellite. What is the name of this satelitte?

In which of the following would you expect the best transmission of light? a. hot gas b. a glass of very cold liquid c. an object in the solid state d. colored cloth

The position of the front bumper of a test car under microprocessor control is given by x (t) = 2.31 m + (4.90 m/s2) t2 - (0.100 m/s6) t6. (a) find its position at the instants when the car has zero veloc

Monochromatic light passes through two parallel narrow slits and forms an interference pattern on a screen. As the distance between the two slits is decreased, the distance between light bands in the pattern on the screen will a. decrease. b.

The voltage in a battery is 9 volts. The resistance is 3 ohms. What is the current?

What do you call a group of cats?

Justin, with a mass of 30 g, is going down a 8.0 m high water slide. he starts at rest, and his speed at the bottom is 11 m/s. how much thermal energy is created by friction during his descent

Which of the following is NOT a type (shape) of galaxy? Question 3 options: a) triangular b) irregular c) spiral d) elliptical