Which of the following answer choices contains a covalent bond?

Select one:

a. KF

b. CaS

c. NO

d. MgS

What is the relationship between chemical equilibrium and the rates of forward and reverse reaction

If a ruler is marked off by 1 centimeter increments, give an example of a measurement that could be made using that ruler. Be careful to give the measurement using the correct significant figures.

Molar mass of an unknown

Students working in lab accidentally spilled 17 l of 3.0 m h2so4 solution. they find a large container of acid neutralizer that contains baking soda, nahco3.

Which tool was most likely used in a procedure if the lab report shows that approximately 300 mL of water was used? A volumetric flask a graduated cylinder a pipette a beaker

What is plasma from which clotting factors have been removed called?

Genetic evidence supports which of the following explanations for the presence of 13 different finch species on the Galápagos Islands? A.

A living thing that cannot make its own food and must eat other living things for energy

Which best explains why astronauts appear weightless when they are in a space shuttle orbiting Earth? • They are falling toward Earth at the same rate as the space shuttle.

If increase the amplitude how does the velocity change? (No google)