The atomic mass of hydrogen-1 is 1.008 and the atomic mass of helium-4 is 4.003. Find the difference in grams between 4 moles of hydrogen and one mole of helium.

Assuming a constant temperature which sample below would you expect to be at the highest pressure?

What is the earth thinnest layer?

Write the molecular equation and net ionic equation for the reaction of hydroiodic acid and potassium hydroxide. Include phases (states). Enter the formula for water as H 2 O.

What is another name for a compound known as a salt? Molecule Covalent compound Element Ionic compound

Electronegativity ... is the ability of one atoms to "steal" an electrons from another atom is why oxygen has a partial negative charge in a water molecule creates polarity in covalent bonds all of the above

Detailed explanation of why the sky is blue

Becky leaves home and write a distance of 30 KM it took her 2.5 hours what is her speed

Describe the weather associated with a high presurre system

Which of the following is equal to distance/time?

Which of the following should you always wear to avoid being thrown from a vehicle and then crushed if it tips over?