Chemistry

Use the References to access important values if needed for this question. The molar solubility of chromium(III)hydroxide in a water solution is square M.

In water, a base will increase the concentration of __ ions.

If either of the reactions is nonspontaneous but can become spontaneous , at what temperature might it become spontaneous? Round your answer to 2 significant digits. square ^circ C

In Part 1, suppose a student did not heat the evaporation dish and mixture long enough for all of the ammonium chloride to sublimate. How would the measured mass of ammonium chloride be affected? mass would be higher mass would be lower mass remains unchanged

Which of the following formulas is named incorrectly? (NH_(4))_(2)SO_(4) is diammonium sulfate. P_(4)S_(6) is tetraphosphorus hexasulfide. HNO_(3) is nitric acid. Na_(2)O is sodium oxide.

15. Which food tastes acidic? radish celery tomato cucumber

12. Why might a chemist add a buffer to a solution? The buffer can keep the pH stable when small amounts of acid or base are added. The buffer reacts with the acid or base in solution to form a useful product. The buffer changes color to indicate the pH of the solution. The buffer can magnify the changes to pH caused by adding small amounts of acid or base.

Which of the following is NOT an advantage of microwave drying? short drying time high production rates efficient energy usage lowered bacteriologica counts gentle on delicate products

An atom of copper (Cu) has a mass number of 63 and an atomic number of 29 How many protons does it have? A. 29 B. 34 C. 63 D. 92

Chemicals that people breathe in to experience some type of high are called __ hallucinogens inhalants anabolic steroids bath salts