Which way can heat never flow?

a. hot to colds

b. cold to hot

c. liquid to solid

d. solid to liquid

Missy Mae is given an unknown white ionic solid which contains one of the cations Na+, K+, Ca2 + and one of the anions Cl-, NO3-, SO42-. Write the formulas of all of the possible ionic compounds involving the NO3 - anion.

What statement goes against the kinetic theory of gases

Can we make the goal penny go back to the original color (copper penny?

The density of h2 gas in a rigid container is 0.135 g/l at a given temperature. what is the pressure of hydrogen in the flask if it is heated to 201 °c?

Electrons never flow from sink to source. True False

Which branch of musicology might study the reasons as to why you like rock music and your friend like country music?

Consider the statement, In the following process, the number of particles increases, so ΔS for this process must be positive. MgS (s) ⇄ Mg2 + (aq) + S2 - (aq) Is this statement true?

How do you read a data table?

In the manufacturing process of sulfuric acid, sulfur dioxide is reacted with oxygen to produce sulfur trioxide.

What is the pH of a solution with hydrogen ion concentration of 1 x 10^-6 M?