Which of the following groups of elements are most likely not to show similar properties?

carbon, silicon, and tin

helium, neon, and argon

francium, radium and hassium

manganese, rhenium, and technetium

Define term buffer. what component are required for a solution to be buffer

Suppose you are working with 4 bit 2's complement signed numbers. Which pairs of numbers, if added, will produce the wrong result (overflow).

Which gas law states that the pressure of a gas decreases when volume is increased and the temperature is unchanged

0.004207 round off to 3 significant figures

A gas sample has an initial pressure of 547 mmHg and initial volume of 0.500 L. Pressure (in atm) when the volume of the sample is decreased to 225 mL?

Molar heat of condensation/vaporization of energy definition chemistry

What do different rock textures of metamorphic rock reflect

Calculate the formula mass for each compound. a. NO2 b. C4H10 c. C6H12O6 60. Calculate the formula mass for each compound. a. MgBr2 b. HNO2 c. CBr4 d. Cr (NO3) 3

How many electrons will calcium gain or lose when it forms an ion?

Which statement describes thermal energy? the energy that is associated with electric fields the energy that is stored in chemical bonds the energy that is associated with the pull of gravity the energy that is associated with temperature