A solution in a dish contains 4.0 grams of salt dissolved in 100 grams of water. If 50 grams of the water evaporate, this is evidence that the solution is

an element

an compound

an mixture

a pure substance

How manhhy neutrons does element x have if its atomic number is 24 and its mass number is 77?

The interactive forces between particles are ... A) less effective in solids than in liquids B) more effective in solids than in liquids C) equal to that of a gas D) zero

Give the answer to the problem below using the correct number of significant digits. (1.3 x 103) x (5.724 x 104)

What would likely happen if a hot saturated solution were filtered by vacuum filtration using a büchner funnel? (hint: the mixture will cool as it comes in contact with the büchner funnel.) ?

Summarize the trend in metallic character as a function of position in the periodic table. Is it the same as the trend in atomic size? Ionization energy?

what combination will result in a acidic solution? a reaction of strong acid and strong base b reaction of strong acid and weak base c a reaction of weak acid and strong base d reaction of weak acid and weak base

How many moles of sucrose (C12 H12 O11) would be in 7.1 liters of a 0.93 molarity solution of sucrose?

If the temperature is constant what change in volume would cause the pressure of an enclosed gas to increase by a factor of 4

For the reaction of carbon with carbon dioxide to make carbon monoxide, one set of conditions produced a Kc = 1.2 * 10-1. At equilibrium at a certain temperature, the concentration of product was 0.60 M.

Water is a colorless and odorless liquid. It can exist in solid, liquid, and gas states. It boils at 100 degrees C and melts at 0 degrees C. Which option best describes this information? A. These are the physical properties of water. B.