What is a radical? a group of atoms that act like one atom a group of ions that have no charge a group of ions that break up during a reaction a group of atoms that give off radiation

Increasing the surface area of a soild

Standard reduction potentials are based on which element? A. helium B. hydrogen C. lithium D. oxygen E. zinc

Water contracts as it freezes at 0°C. Solid ice is less dense than liquid water. Liquid water expands with increasing temperature between 0°C and 4°C. Liquid water expands with increasing temperature above 4°C.

Are silver spoons tarnished and turned black, chemical or physical property?

The equation 24x2+25x-47ax-2=-8x-3-53ax-2 is true for all values of x≠2a, where a is a constant. What is the value of a? A) - 16 B) - 3 C) 3 D) 16

Which of the following is a natural material? cement A) cement B) cotton C) polyester D) nylon

Which of the following would be the best conductor of heat energy? a plastic spoon a wooden spoon a metal spoon

J. J thomsons experiment disproved the theory that an atom A) is divisible B) is indivisible C) contains protons D) contains electrons

What is the maening of separation methods

Examine the equation. 6CO2 + __H2O C6H12O6 + 6O2 In order to balance the equation, what coefficient must be placed in front of H2O? 4 1 6 12