where are you most likely to find a base in your house?
a. household cleaners
b. vitamin pills
c. fruit juiced
d. car battery
household cleaners
how many chemical bonds can each carbon atom form?
4
Monomer
strong acids can produce designs on printing plates because they?
are corrosive
When 40 mL of alcohol form a solution with 30 mL of water.
What part of the solution is the solvent and which part is the solute?
alocohol = solvent
water = solute
the element whose atoms can make straight chains, branched chains, and rings is?
carbon
A large, complex molecule built from smaller molecules joined together?
Polymer
Explain the roles of chemical and mechanical digestion in preparing food for use in the body.
when you eat, your teeth chew and grind food into smaller pieces. This is mechanical digestion. The reactions aided by the digestive enzymes break down large food molecules into smaller molecules. this is chemical digestion. The two processes change the food into simpler substances that can be used by the body for raw materials and energy.
Acids present in food are safe to eat because they usually are?
weak
When you add so much solute that no more dissolves, what kind of solution do you have?
Saturated solution
hollow ball with a pattern like a geodesic dome
a natural polymer that gives shape to plant cells is
Cellulose
Explain why someone adds antifreeze to the water in a car's radiator to protect the engine from damage
what is another name for carbon compounds?
Organic compounds
which of the following solutions is the most concentrated?
a. 20 g of table sugar in 80 g of water
b. 15 g of table sugar in 60 g of water
c. 30 g of table sugar in 100 g of water
d. 25 g of table sugar in 75 g of water
d. 25 g of table sugar in 75 g of water
30% concentrated
what property do all hydrocarbons have?
a. they dissolve in water
b. they make good conductors of electricity
c. they burn easily
d. they have high melting points
c. they burn easily
a substance made of two or more elements that has the properties of metal is a(n)
alloy
You are given three clear, colorless, unknown solutions, and red and blue litmus papers. Describe the steps you might take to correctly identify each solution as acidic, basic, or neutral.
what does it mean if a compound has a solubility of 15 g in 100 g of water at 00C
a. the compound will not dissolve until 15 g of it are present
b. the compound will dissolve only if the water temperature is at 00C
c. 15 g of the compound will dissolve in 100 g of water at 00C
d. 100 g of the compound will dissolve in 15 g of water at 0oC
C. 15 g of the compound will dissolve in 100 g of water at 00C
Any substance that forms hydrogen ions (H+) in water is a(n)
Acid
which of the following is an alloy?
a. copper
b. bronze
c. tin
d. gold
b. bronze
Describe the neutralization process and give an example of the reaction using hydrochloric acid (HCl) and potassium hydroxide (KOH).
a neutralization reaction occurs between an acid and a base and produces salt water. the pH of the products is closer to neutral when compared to the pH of the acid or base.
Composite