PLEASE HELP!!!!!!! I have 2 of these science questions!!!!
Which of these is a chemical property?
Melting Point
Density
Color
Flammability
A student notices that when calcium chloride is placed in water, the test tube feels warm. What kind of reaction has taken place?
Combustion Reaction
Endothermic Reaction
Exothermic Reaction
Endergonic Reaction
A 200 kg golf cart strikes a 1500 kg car with 1000N of force, bringing its velocity from 5 m/s to 0 m/s in 1 second. How much force did the car apply to the golf cart?
100 N
1000 N
1500 N
Not enough information has been given to solve the problem
A student claims to have a weight is 45 kg. What is the problem with the claim?
Most people weigh more than 45 kg.
Most people weigh less than 45 kg.
Kg is a unit of mass in the SI system, so she has confused mass and weight.
The student has confused kg and Newtons and must weigh 45 N.
