What is helium an example of?
element
compound
atomic number
subatomic particle

Agas has a volume of 0.7 l at 300 mmhg. what would be the new volume at 900 mmhg

Select the correct answer. which statement is true about a polarized object? o a. it gains electrons and becomes negatively charged. ob. it gains protons and becomes positively charged. oc. the number of positive and negative charges can be the same. od. it has to be a metal. o e. there is no change in the distribution of the charge in the object. reset next what

Atrain travels 74 kilometers in 3 hours, and then 81 kilometers in 5 hours. what is its average speed?