WILL GIVE BRAINLIEST Please help me learn and understand this question.

The characteristics of a certain gas are listed in the table.

Characteristics of a Gas

Characteristic Description

Compound Chlorine gas

Condition STP

Mass 3.2 grams

What is the expected density of the above sample of gas?

Which of the following statements about hybrid orbitals is or are true? choose all that apply. choose all that apply. under sp2 hybridization, the large lobes point to the vertices of an equilateral triangle. after an atom undergoes sp hybridization there is one unhybridized p orbital on the atom. the angle between the large lobes of sp3 hybrids is 109.5∘

Can someone me with 3 and 4 plz. this is for masteries test.

How many liters of ethylene glycol antifreeze (c2h6o2), with a density of 1.100 g/l, would you add to your car radiator containing 15.0 kg of water if you needed to protect your engine to - 21.5°c? for water, kf = 1.86°c m -1.