Calculate the concentration of sodium ions made by diluting 45.0 mL of a 0.748 M solution of sodium sulfide to a total volume of 250.0 mL

Which compound is insoluble in water

Which choice represents a pair of resonance structures? note that lone pairs have been omitted for clarity. hints which choice represents a pair of resonance structures? note that lone pairs have been omitted for clarity.

Is steel a mixture or pure substance

What are homogeneous mixtures of metals commonly called?

Which of these is a chemical change a / fire works eploding b/grinding powder c/iorning shirt

What is limiting reajent?

What elements react the most? Like have the most reactivity.

A neutral atom has an atomic number of 20 and a mass number of 42. How many electrons does the atom have?

A rock is placed into water and the volume of water increase 15ml. what is the density of the rock if it had a mass of 24.3 grams.

Suppose a student did not fully redissolve the Al (OH) 3 that initially formed upon the addition of H2SO4. Predict and explain how this would impact the apparent percent yield this student determines.