43. Calculate the root mean square velocity (r. m. s.) of 1 mole of CO2 at 270C (mm = 44gmol-1

)

A. 4.12 x 102m/s

B. 12 x 102m/s

C. 5.2 x 102m/s

D. 1.2 x 102m/s

How man total atoms are found in 2HCO3?

Why is the brcl molecule polar? the shared electrons are closer to cl due to the greater electronegativity of chlorine. bromine has a large positive nucleus. three-dimensional geometry is asymmetrical.

What is the electron structure of an oxygen atom? A.) 1s22s22p4 B.) 1s12s22p4 C.) 1s22s12p4 D.) 1s12s12p4

What change would increase the amount of gas able to be dissolved in a given amount of liquid water?

Given: K = °C + 273.15 What is the temperature of the flame in degrees Celsius? You measure the flame of a candle and get a reading of 1,376.06 K. This valuelis equal to °c

Laboratory safety is not an important concern for scientists. True or false

Which of the bonding forces from the list below would need to be overcome to convert NH3 from a liquid to a gas? (Enter the letters in order of all that apply, e. g. AB, ABD, ACDE, etc.

A precipitate of zinc hydroxide can be formed using the reaction below. ZnCl2 (aq) + 2 KOH (aq) → Zn (OH) 2 (s) + 2 KCl (aq) If excess KOH is used, the zinc hydroxide will form zincate ions and dissolve in the solution according to the chemical

Which of the following is the correct (unbalanced) equation for the reaction that takes place when solid phosphorus combines with oxygen gas to form diphosphorus pentoxide? A. P (s) + O2 (g) - -> P2O5 (s) B. P2O5 (s) - -> P2 (s) + O2 (g) C.

Nonrenewable resources are natural resources that are limited in supply and cannot be replaced as quickly as they are used up. True or false