Random Chapter 5
These types of changes include changing the identity of a substance and making something new. (Hint: it's not physical).
What are chemical changes?
This smelly base is a common fertilizer and cleaner. It's also the strong aroma produced from cat pee.
What is ammonia?
This term refers to whether something is a solid, liquid, or a gas.
What is state of matter?
A pH of 7 is considered what? (Water is an example.)
What is neutral?
Tearing paper
What is a physical change?
What is a salt?
Coke and Dr. Pepper are high in this common acid.
What is carbonic acid?
Mass divided by volume equals this term.
What is density?
This strong acid, also called hydrochloric acid, is used in human digestion and can lead to "heartburn."
What is stomach acid?
Burning your report card
What is a chemical change?
What is the density of a 30 g rock that has a volume of 5 cm3?
What is 6 g/cm3?
The strongest base on earth, sodium hydroxide (NaOH), is also called this. And, that's the truth.
What is lye?
These types of properties of matter can be observed without changing the identity of matter.
What are physical properties?
These substances have a pH of 0-6.99, taste sour, and turn blue litmus paper red.
What are acids?
Slicing a piece of Thanksgiving turkey
What is a physical change?
Acetic acid is commonly called this, which is useful for pickling things.
What is vinegar?
If you take a dip in the swimming pool, you will likely come in contact with this chlorine-containing acid.
What is hypochlorous acid?
These types of properties change when the size of the object changes.
What are size-dependent properties?
These substances have a pH of 7.01-14, taste bitter, and turn red litmus paper blue.
What are bases?
Boiling water, melting ice, or freezing a popsicle
What are physical changes?
This acid is commonly found in citrus fruits containing high levels of vitamin C.
What is ascorbic acid?
This common base is found in deodorant.
What are size-independent properties?
Which of the following is an example of a base?
A. lemon juice
B. human blood
C. coffee
D. vinegar
What is human blood?
Which of the following is a physical change?
A. Fruit ripening
B. A tomato plant growing
C. A football stadium collapsing
D. Frying catfish
What is a football stadium collapsing?