Which formula represents a molecule with the most polar bond?

a. CO

b. NO

c. HI

d. HCI

The following data were measured for the reaction BF3 (g) + NH3 (g) →F3BNH3 (g) : Experiment [BF3] (M) [NH3] (M) Initial Rate (M/s) 1 0.250 0.250 0.2130 2 0.250 0.125 0.1065 3 0.200 0.100 0.0682 4 0.350 0.100 0.1193 5 0.175 0.100 0.

Suppose that a fictitious element, X, has two isotopes: 59X (59.015 amu) and 62X (62.011 amu). The lighter isotope has an abundance of 81.7%. Calculate the atomic mass of the element X.

When balancing the oxidation and reduction half-reactions for acidic solutions, you should: use H + and OH - equally in order to balance the equation use H + only in order to balance the equation use H + and H2O, as needed to balance the equation

How many atoms are in 64 g sulfur (S) ?

Which statement below is not accurate about DNA? DNA is the same for all organisms within a species. DNA is shaped like a double helix (twisted ladder). DNA is made of sugars, phosphates and nucleotide bases ...

What happens when a glass is filled to the brim with water and an ice cube is in the glass already what would happen to the level of water when the ice cube had melted?

Explain how a nuclear power plant uses the process of nuclear fission to produce electricity.

Compare and contrast chemical potential energy and elastic potential energy

Which of the answer choices best describes how electrons move, according to modern atomic theory? They vibrate in place. They move like planets. They move in orbitals. They slide past each other.

The total solute concentration of a red blood cell is about 2%. Sucrose cannot pass through a red blood cell's plasma membrane, but water and urea can. Which of the following solutions will cause a red blood cell to shrink? a.