There us no sound in the vacuum of space Why?

Answer all that are correct

A) sound must travel through something that vibrates

B) there is no energy in space

C) there is no air to vibrate in the human eardrum

Which of the following bonds is most popular? C-C, C-N, C-O, C-H

Which sequence represents the relationship between pressure and volume of an ideal gas as explained by the kinetic-molecular theory? A. more gas particles - more collisions - higher pressure B.

How many moles of co2 are produced from 1.0 mol butane c4h10

A rectangular fence is 3 times as long as it is wide. The perimeter is 60ft. Find the dimensions of the fence

If 20.0 ml of glacial acetic acid (pure hc2h3o2 is diluted to 1.70 l with water, what is the ph of the resulting solution? the density of glacial acetic acid is 1.05 g/ml.

Why does acetone have more surface tension than methanol?

What is the vapor pressure of the solution if 15.0 g of water is dissolved in 100.0 g of ethyl alcohol at 25 ∘C? The vapor pressure of pure water is 23.8 mmHg, and the vapor pressure of ethyl alcohol is 61.2 mmHg at 25 ∘C.

When 500 mL of 0.100 MAgNO3 is combined with 500 mL of HCl in a coffee-cup calorimeter, the temperature changes from 23.40 ∘C to 24.21 ∘C. Calculate ΔHrxn for the reaction as written. Use 1.00 g/mL as the density of the solution and C=4.

How much heat is required to warm 1.30 l of water from 24.0 ∘c to 100.0∘c? (assume a density of 1.0g/ml for the water.) ?

how many protons electrons and neutrons does a atom with the atomic number 50 and mass number 125 contain?