explain why noble gases are often used in technologies. Why do the properties of the gases make them useful?

What biome should you live in if you enjoy a mountainous region with sparse summer vegetation; soil is frozen most of the year, very cold and dry all year? Question 2 options: Taiga Desert Grassland Tundra

Write the nuclear equation for the alpha decay of: (a) Ra-256 (b) Rn - 219 (c) Po - 211 (d) Pb-210 (e) U-238

Problem page ammonia nh3 chemically reacts with oxygen gas o2 to produce nitric oxide no and water h2o. what mass of oxygen gas is consumed by the reaction of 6.3g of ammonia?

The gravitational force between two objects is 100 N If the mass of each object is doubled, what is the gravitational force between the objects at the same distance? 25 N 50 N 200N 400 N

What do nonmetals forming compounds with other nonmetals what kind of bond do they form

What is 19 hundred thousandths in scientific notation

There state of matter that keeps its shape and volume when it is placed in a container

Our body solution tests at a pH of about 6.8. This pH is:

A diatomic gas has the molar mass of 38.00g/mol. what is the possible formula?

Which of the following is the final concentration of KCl if 500 ml of 0.25 M KCl is diluted to a final volume of 5 L? 0.025 L 0.0025 L 25 L 2.5 L