Why do hydrogen atoms accompany electrons as they are transferred in biological systems?

Which element has the greatest electronegativity? fluorine chlorine bromine iodine

What type of molecule is DNA? a. an amino acid c. a lipid b. a protein d. a nucleic acid

For the reaction: 2H2O2 → 2H2 + 2O2, what is the total number of moles of O2 produced from the complete decomposition of 8 moles H2O2? A) 2 moles B) 4 moles C) 8 moles D) 16 moles

An airplane specifically designed to fly at high altitudes may have: O A. a battery that provides additional power for the extra thrust needed. O B. an extra engine to burn more fuel and create more thrust. O C.

How many moles of H + (aq) ions are present in 750 mL of 0.65 M hydrochloric acid?

Which planet has no atmosphere which prevents erosion?

Why must you wear safety glasses at all times

How do you classify solutions as acidic, basic, or neutral?

Which statements describe abiotic factors in an environment?

A ball rolling across the ground in Death Valley will slow and eventually stop. Why? - the ball's kinetic energy evaporates. - the ball's force is destroyed. - the friction of the ball changed the force to negative ions.