Which of the following elements is a transition metal

a. La

b. Ca

C. Cl

d. Mn

What is the difference between a law and a theory? How is this related to evidence? Do theories change?

What force is needed to accelerate a car with a mass of 950 kg at a rate of 5.0 meters/sec2? 190 N 4,750 N 955 N

Which atomic orbitals overlap to form the C-O bond of dimethyl ether, (CH3) 20? O c 2sp^3 + 2sp^3 OC 2sp^2 + 0 2p O c 2sp^2 + 0 25p^2 O C 2sp^3 + O 2sp?

Which of the following is the most common kind of chemical bond in biological molecules? a. Covalent b. Ionic c. Delocalized d. Unsaturated

Calculate the density of mercury if 1.00x10^2g occupies a bolume of 7.36 cm

Name two things a magnetic can do

If the net force on a 75-N object is 375 N from the left, in what direction will the object move? Question 2 options: toward the right toward the left in a straight line to the side

Which word is the longest word in chemistry?

0.0000250 m in scientific notation

Why would concentrated hydrochloric acid be a poor choice as the acid catalyst for the formation of cyclohexane by dehydration of cyclohexanol