Which material is the least likely to be recognized as a mixture by looking at it under a microscope? a suspension a colloid a homogeneous mixture a heterogeneous mixture

Convert 0.36 atm to kPa

Millikan's oil-drop experiment A. established the charge on an electron. B. showed that all oil drops carried the same charge. C. provided support for the nuclear model of the atom. D.

The atomic mass of hydrogen-1 is 1.008 and the atomic mass of helium-4 is 4.003. Find the difference in grams between 4 moles of hydrogen and one mole of helium. A) 4.81 x10-26 g B) 0.029 g C) 1.7 x 1022 g D) 0 grams

What is the definition of a covelant bond? A. a bond between two positive ions. B. a bond between two negative ions. C. a bond between a positive and negative ion. D. a bond between two atoms

One ball rolls along a shelf at a steady rate. a second ball rolls off the shelf and gains speed as it falls in a curved path. which must have an unbalanced force acting on it?

How many molecules are in 3 moles of Fe2O3?

What terms are needed to completely describe velocity ... A. units B. number C. mass D. direction

How many grams are in 3.3 moles of potassium sulfide, k2s

What is fusion energy

A 4.5-liter sample of a gas has 0.80 mole of the gas. If 0.35 mole of the gas is added, what is the final volume of the gas? Temperature and pressure remain constant. 3.9 liters 5.3 liters 6.3 liters 6.5 liters