What is the chemical that had polluted flints drinking water supply

If 1.63 times 10 negative 4 of helium dissolves in 100.0g of water, what is the concentration in parts per million

How would you reduce the volume of gas

The diagrams show objects’ gravitational pull toward each other. which statement describes the relationship between diagram x and y? gravity attracts only larger objects toward one another. gravity attracts larger objects only if they are close to one another. if the masses of the objects increase, then the force between them also increases. if distance between the objects increases, then the amount of force also increases.