Which of the following properties is a chemical property?(1 point)
Responses
flammability
flammability
magnetism
magnetism
melting point
melting point
hardness
flammability.
Which of the following substances is a compound?(1 point)
Responses
gold (Au)
gold (Au)
oxygen (O)
oxygen (O)
carbon (C)
carbon (C)
water (H2
O)
water (H2O)
Which of the following substances is an element?(1 point)
Responses
hydrogen
hydrogen
insulin
insulin
protein
protein
salt
hydrogen
Which of these properties is a chemical property?(1 point)
Responses
melting point
melting point
flammability
flammability
hardness
hardness
magnetism
flammability
The chemical formula for methane is CH 4
. What is the fixed ratio of carbon (C) to hydrogen (H)?(1 point)
Responses
1:4
1:4
4:5
4:5
1:1
1:1
1:5
1:4
Why do writers add multimedia to an informational text?(1 point)
Responses
to help the reader comprehend the facts, comparisons, or details in the writing
to help the reader comprehend the facts, comparisons, or details in the writing
to show the reader why a topic was chosen
to show the reader why a topic was chosen
to make the organizational strategy more clear
to make the organizational strategy more clear
to hide details from the reader that are boring, nonessential, or irrelevant