You have prepared a saturated solution of x at 20∘c using 31.0 g of water. how much more solute can be dissolved if the temperature is increased to 30∘c? express your answer with the appropriate units.

A neutral beryllium atom has four protons and five neutrons. How many electrons does it have?

Katie wants to see if apples that are kept cold will rot or stay edible. She places an apple in the refrigerator and records the date. What should she use as a control?

Which change in pH represents a hundredfold increase in the concentration of hydronium ions in a solution? (1) pH 1 to pH 2 (3) pH 2 to pH 1 (2) pH 1 to pH 3 (4) pH 3 to pH 1

Which has a charge of + 1? proton atom electron neutron

If stomach acid has a ph of 1.3, what is the pOH

Explain the relationship between the roman numeral and the charge used in naming ionic compounds.

Which type of wave has a wave perpedicular to the disturbance? A: Mechanical B: Transverse C: Longitude D: Surface

What minerals that are heavy, durable, and chemically resistant are likely to be found in what kind of deposites?

You have arrived on a planet where S2, not O2, is the gas used as fuel in combustion reactions. When gaseous propane (C3H8) is burned in S2, H2S and carbon disulfide gases are produced. If 200.0 grams of propane and 75.

What are not chemical properties of matter?!