The substances in a chemical reaction that are combined or separated to form new substances are the

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Snow melting is a physical change. True False

Which of the following is used to determine the true color of a mineral? luster, cleavage, hardness, streak

if I have 22.1 grams of CO2 gas at - 188 degrees Celsius and 165 ml what is the pressure of the gas in kPa

The dissolution of barium hydroxide in water is an exothermic process. Which of the following statements is correct? A) The enthalpy of solid barium hydroxide plus pure water is less than that of the solution, at the same temperature.

What's the Compound for CO?

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If the pH of a wine is too high, say, 4.0 or above, the wine becomes unstable and has a flat taste. (a) A certain California red wine has a pH of 3.5, and a certain Italian white wine has a pH of 2.9.

Sodium hydroxide reacts with carbon dioxide as follows: which is the limiting reactant when 1.85 mol naoh and 1.