Please answer quickly and fill in the blanks. Determine which type of property each statement describes by typing “physical” or “chemical” in the blank.

Hydrogen is a colorless, tasteless, and odorless gas.


Hydrogen is very combustible in the presence of oxygen.


Hydrogen is very reactive with most elements.


Hydrogen is the least dense of all elements.

- "the choice that is not an indicator of a chemical change is "state of matter changes". more common than not, chemical reactions produce energy in the form of light or heat. along with energy, they also produce a new substance called the product that could be in any state of matter (solid, gas, or liquid)."

1. they vary with a higher number because boiling is way hotter than melting

the answer is 1260

you spend 7 hours in school for 1 school day with 5 school days in 1 school week with 36 school weeks in a school year.

7*5*36= 1260 it's all about multiplying