Which of the following properties is a chemical property?(1 point)
Responses
magnetism
magnetism
melting point
melting point
flammability
flammability
hardness
flammability
Which of the following substances is a compound?(1 point)
Responses
oxygen (O)
oxygen (O)
gold (Au)
gold (Au)
carbon (C)
carbon (C)
water (H2
O)
water (H2O)
Which of the following substances is an element?(1 point)
Responses
salt
salt
protein
protein
hydrogen
hydrogen
insulin
hydrogen
Which of these properties is a chemical property?(1 point)
Responses
melting point
melting point
hardness
hardness
magnetism
magnetism
flammability
flammability
Which of these properties is a chemical property?(1 point)
Responses
melting point
melting point
hardness
hardness
magnetism
magnetism
flammability
flammability
The chemical formula for methane is CH 4
. What is the fixed ratio of carbon (C) to hydrogen (H)?(1 point)
Responses
1:1
1:1
1:5
1:5
4:5
4:5
1:4