Which of the following answer choices contains a covalent bond?

Select one:

a. KF

b. CaS

c. NO

d. MgS

What causes clothes from a dryer to stick together?

The following reaction shows sodium carbonate reacting with calcium hydroxide. Na2CO3 + Ca (OH) 2 → NaOH + CaCO3 How many grams of NaOH are produced from 20.0 grams of Na2CO3? (Molar mass of Na = 22.989 g/mol, C = 12.01 g/mol, O = 15.

Explain how thermal energy is transferred through convection.

What is measured by the reaction rate? the speed at which products form the time required for a reaction to go to completion the probability that a reaction will occur

What's a hinge, pivot, ball and socket called

Compare and contrast steak and juice

Which of the following laboratory tools would be most appropriate for determining the volume of and irregular shape A) ruler B) triple beam balance C) graduated cylinder D) answers b and c

What type of change is the process of photosynthesis

A graduated cylinder is filled to the 40.00-mL mark with a mineral oil. The masses of the cylinder before and after the addition of the mineral oil are 124.966 g and 159.446 g, respectively. In a separate experiment, a metal ball bearing of mass 18.

Which element in Group 15 has the greatest metallic character? 1) N 2) P 3) Sb 4) Bi