Will give brainliest answer! pls help! How many moles of potassium sulfate would you need to prepare 1200 grams of 5.0% potassium sulfate (m/m) solution? Include 2 significant figures in your answer.

Several kinds of bears are found on earth. most bears are brown or black, but one type of bear, the polar bear, is white. what process led to this difference in fur color? explain your answer.

What is the percentage of hydrogen in nitrogen trihydride

Read the chemical equation. 2c2h2 + 5o2 → 4co2 + 2h2o which of the following statements would be correct if one mole of c2h2 was used in this reaction? one mole of oxygen was used in this reaction. five moles of oxygen were used in this reaction. four moles of carbon dioxide were produced from this reaction. two moles of carbon dioxide were produced from this reaction.