A chemical reaction is when two elements or radicals change places with two other elements or radicals is a ... reaction

A - double replacement

B - combination

C - decomposition

D - substitution

A car drives 5.0 km north, then 7.3 km east, then 5.3 km northeast, all at a constant velocity. If the car had to perform 2.6 * 106 J of work during this trip, what was the magnitude of the average frictional force on the car?

Rearranging the F=BVQ*sin to get the angle

A 8.6-kg cube of copper (cCu = 386 J/kg-K) has a temperature of 750 K. It is dropped into a bucket containing 5.1 kg of water (cwater = 4186 J/kg-K) with an initial temperature of 293 K.

Why do comets have tails?

Given the model h (t) = -16t^2+22t+8 what is the velocity?

Why can't cells get any glucose directly from the small intestine?

Oxygen makes up the largest part of living cells at 65%. What is the percentage of the second-most abundant element in living cells?

Shivering to warm up illustrates which characteristic of life? A. adaptation to environment B. homeostasis C. getting energy D. growth

Dante pours hot tea into a mug that is cool to the touch. Which best explains what will happen now?

What type of resource can be regenerated or replenished by biochemicl cycles