4. Consider this reaction: BaCl (aq) + MgSO4(aq) →
BaSO4(s) + MgCl2(aq)
(a) Name the reactants and products.
(b) Compare the states of the four chemicals.
(c) Name the product that remains dissolved
in water.
(d) Name the solid product.

If blood contains 150g of hemoglobin per liter of blood, how much hemoglobin would be contained in 10 ml of blood

Ican determine the molar mass of an element by looking on the under the atomic mass for the element. for example the molar mass of phosphorus is 30.974 grams/mole. avogadro’s number tells me the amount of representative particles in 1 mole of any substance. this means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.

Na chemical reaction, activation energy increases the of the reactants. this outcome causes the particles to collide, which results in the of new products.