What is the average salinity of ocean water 1. 0.345 g/kg 2. 3.45 g/kg 3. 34.5 g/ml 4. 345 g/ml?

How many moles is 14.5 cm^3 of platinum? the density of platinum is 21.45 g/cm^3.

An animal cell loses the ability to convert energy stored in food to energy that the cell can use. which of the cell's organelles has stopped working? a. the mitochondria b. the nucleus c. the vacuoles d. the endoplasmic reticulum

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.