Which element is classified as a noble gas at STP?

hydrogen

oxygen

neon

nitrogen

Which of the following reveals a pattern observed by scientists

A chemical solution contains 2% salt. how much salt is in 4 ml of solution?

How did the elements begin to stratify?

According to the hypothesis the solar system formed from a cloud of dust and gas

Hakim used 18000J of energy to climb up to the top of a building in 10 mins. calculate the power he developed in climbing up to the top of the building?

If a drop of blood is 0.05 mL, how many drops of blood are in a blood collection tube that holds 8 mL?

Gasohol is a fuel containing ethanol (c2h6o) that burns in oxygen (o2) to give carbon dioxide and water.

Consider a neutral atom with 30 protons and 32 neurons. What is the atomic number of the element?

Find the molarity and molality of 37.0 wt% Hcl. Assume the density of the acid is 1.19g/ml

Which excerpt from "Bone Detective" best shows that Diane France is recognized as an expert in her line of work? But, once again, she was able to produce an amazingly detailed impression.