Unit 6: Reactions in solutions

What is a solution and what are the two parts of a solution?

• A solution is a type of metal, and the two parts are the left side and the right side
• A solution is a homogeneous mixture of two or more substances, and the two parts of a solution are the solvent and the solute.
• A solution is a mixture of solid and liquid, and the two parts are the top layer and the bottom layer
• A solution is a type of gas, and the two parts are the inside and the outside

True or False: usually acids are weaker with the more H they have, for example monoprotic acids (1 h), are stronger than triprotic acids (3 h).

• False
• True

What are the seven strong acids?

• HCl, HBr, HI, HClO3, HCIO4, HNO3, H2SO4

• Sodium hydroxide, potassium hydroxide, calcium hydroxide, magnesium hydroxide, aluminum hydroxide, iron(III) hydroxide, zinc hydroxide
• Carbonic acid, phosphoric acid, boric acid, silicic acid, arsenic acid, telluric acid, antimonous acid
• H2O, MgSO4, CA(OH)2, LIBr, CaCl2, NaOH, HCl

• LiOH, NaOH, KOH, RbOH, CsOH, Ba(OH)2,Ca(OH)2

Tags

NGSS.HS-PS1-1

— have a sour taste, turn litmus red, react with metals to form H2(g), and have a ph less than 7, while — have a bitter taste, turn litmus blue, turn phenolphthalein (phth) pink, and have a ph greater than 7.

DR, Metathesis or exchange reaction only occurs if…

• A precipitate, water, or gas forms in a DR.

• the elements are in the same period on the periodic table
• the pH level is neutral
• the temperature is below freezing

Water causes dissociation because it is —-.

• polar
• covalent
• ionic
• nonpolar

True or false:a precipitate is a insoluble solid that occurs when certain pairs of oppositely charged ions attract very strongly.

• False
• True

—- are substances that accept H+ ions; they produce OH ions in water, and typically end with (OH)-

Why are ionic, and net ionic equations important?

• They show what actually happens in the reaction, and they break up all Aq substances into ions.

• Ionic and net ionic equations are important because they are used to determine the color of a solution
• Ionic and net ionic equations are important because they help to balance chemical equations
• Ionic and net ionic equations are important because they are used to calculate the volume of a solution

Tags

NGSS.HS-PS1-7

The moles of solute per liter of solution, and can be found using the equation M=moles/Liter. Which of the following is defined?

• Concentration
• Molarity
• Density
• Volume