Which of the following covalent bonds is the most polar?

H-F

H-C

H-N

H-H

Find the molarity of 186.55 g of sugar (C12H22O11) in 250. mL of water.

A mixture of helium and neon gases has a density of 0.6048 g/L at 48.7°C and 792 torr. What is the mole fraction of neon in this mixture?

All the chlorine atoms have 17 protons

What is the next smallest classification group after order

Which of the following is NOT a physical property of matter? A. Ductility B. Color C. thermal Conductivity D. Reactivity with water

If enough heat is added to a substance, electrons begin to separate from the atomic nuclei. Which process does this describe? A. A solid turning into a liquid B. A plasma turning into a gas C. A gas turning into a plasma D.

What is the percent of H2O in a sample of a hydrate whose mass is 1.1290 g if the mass of water in the sample was 0.1660 g?

Why does conduction occur in solids and liquids easier compared to gases? Because the particles in gases are closer together and move slower Because the particles in gases are farther apart and move faster.

Write a balanced equation for the combustion of gaseous methane (CH4), a majority component of natural gas, in which it combines with gaseous oxygen to form gaseous carbon dioxide and gaseous water.

Pedro listed characteristics of two types of protists in a chart. Two Groups of Protists X Y Often multicellular Are usually autotrophic Include euglenoids Are heterotrophs Reproduce using spores Include different molds Which headings best complete