Question 4 The box below shows a list of chemical formulas.

I. C6H1206

II. AI(CO2)3

III. Si(HCO3)4

IV. Al(C2H302)3

V. K2SO4

Which of these formulas contain equal numbers of oxygen atoms?

Answer

F Formulas I and III

G Formulas I and IV

H

Formulas I, II, and III

J Formulas I, II, and IV

out of these options:

ability to burn paper

pure sodium reacting violently with water

the boiling point of water

helium does not tend to react with anything

i would say this is a physical property:

helium does not tend to react with anything

why? :

i said helium does not tend to react with anything because well, it reacts to ! but ability to burn paper, pure sodium reacting violently with water, & the boiling point of water are chemical or

physical properties: the properties of a substance that can be observed without changing the chemical makeup of the substance

chemical properties: properties of a substance relating to the chemical nature and reactivity of the substance

"hydrogen bonding is the attraction of h atoms in the water molecule (slight + charge) to o atoms in a neighboring water molecule (slight - charge); it is a weak interatomic force. but it is still strong enough to the water molecules "stick" together."

it forms an anion that has a larger radius. anions have a negative charge and are larger than the original atom.