(WILL GIVE BRAINLIEST) A student uses res litmus paper to test the pH value of different solutions. Which would result in a color image of the litmus paper? Check all that apply

Soap
Biodiesel
Drain Cleaner
Antifreeze
Vinegar

Calculate the number of molecules present in 0.750 mol of mgo.

For each of the following compounds, write the formula then predict whether it would be a strong, weak, or non-electrolyte when placed in di water. for the ionic compounds only, put (s) or (aq) after the forrmula formula strong, weak or non electrolyte? a calcium hydroxide b. silver carbonate c. lead(ii) sulfate d. phosphorus trifluoride e. sodium phosphide f barium sulfate g. strontium acetate h. zinc nitrate

What is the percent by mass of oxygen in fe2o3