What does the host mean when he says that the acid has “donated a proton” to the water? A.
When hydrochloric acid is dissolved in water, a proton disappears in the chemical reaction.

B.
When hydrochloric acid dissociates, a positive hydrogen atom is accepted by water to form H₃O+.

C.
When hydrochloric acid dissociates, a negative hydrogen atom is accepted by water to form H₃O-.

Every compound can be represented by a chemical formula. a chemical formula is the set of symbols showing the elements that make up a compound and their proportions. water’s chemical formula is h 2 2 o. that means a molecule of water contains two atoms of hydrogen and one atom of oxygen chemically bonded. a molecule is a group of two or more atoms bonded together. molecules can range in size from two to thousands of atoms. a molecule of a compound is the smallest unit of that compound. every molecule of water has all the physical and chemical properties of water. that’s because every molecule of water is made of the same elements in the same proportions: two hydrogen atoms and one oxygen! which of the following is a true statement? a every molecule of the same compound will have different properties. b every molecule of a compound has the same proportion of elements. c molecules can be physically separated into smaller units of a compound. d molecules cannot be represented by chemical formulae.

In a certain ecosystem owls are predators for mice. the owl population increases and they eat more mice this causes the mouse population to decrease what happens next? a.the birth of mice increases. b. the birth rate of owls increases c. the population of owls decreases d. the population of mice increases

Beth’s hygrometer is reading a temperature of 30 c and a relative humidity of 65%. the humidity in the air is?