As you move from left to right across a period the number of valances electrons

A. increases

B. stays the same

C. increase and then decreases

D. decreases

A board 6 1 8 feet in length is shortened by having 2 1 12 feet cut off one end. the length of the shortened board is

True or false according to national surveys, less than half of all US teens have ever had sex

The Milky Way galaxy was given its name because of what it looks like when viewed from Earth. true or false

describe the interaction between the farmer and manufactured objects, such as farming equipment. how does energy flow

Suppose you have a 113-kg wooden crate resting on a wood floor. (μk = 0.3 and μs = 0.5). What maximum force (in N) can you exert horizontally on the crate without moving it?

As a clinical chemist in charge of the testing of blood samples. You are required to mix a solution of sodium chloride with water in the ratio of 2:5.

A positively charged object will attract an object that has A. a negative charge B. a smaller positive charge C. no charge D. a larger positive charge

Whats the usefulness or inconvenience of frictional force by turning a door knob?

How does the direction of acceleration compare with the direction of the net force that produces it

17. Elaine connects an ammeter to a lamp, which is connected to a battery. She records the current. She connects another battery in series to the circuit and records the ammeter reading again. She repeats this step two more times.