Can something be both a mixture and a pure substance? Explain using examples.

Which one of the following elements is stable?

What is between the cornea and iris

If there are 4 grams of product produced by the chemical reaction, how many grams of reactant were consumed?

A mass of 70.0kg on earth, what would their mass be on the moon, which has 1/6 the gravity of earth

What is the solubility of salt in water at room temperature

What happens to the total mass of a substance undergoing a physical change

32 g of sulfur will react with 48 g of oxygen to produce 80 g of sulfur trioxide. if 20 g of sulfur and 100 g of oxygen are placed into a sealed container and allowed to react, what is the mass of sulfur trioxide in the container after the reaction

Water exhibits high levels of cohesion due to the polarity of the molecule (positively and negatively charged sides). given this information, which type of bond is responsible for water's cohesion and which atoms interact to form this bond?

scientist have found many marine fossils on the mountain far from any ocean or sea what is the best explanation for these fossils

The change in energy needed to change the state of a substance is