Dalton used the lightest element as his standard for atomic mass. What is this element?

A. Hydrogen

B. Carbon

C. Oxygen

D. Nitrogen

How do u draw a circle model for a molecule

How will you test for the gas which is liberated when hcl reacts with an active metal?

Be sure to answer all parts. Calculate the pH during the titration of 30.00 mL of 0.1000 M KOH with 0.1000 M HBr solution after the following additions of acid: (a) 9.00 mL pH = 12.73 (b) 29.80 mL pH = 1 (c) 38.00 mL pH = 1.9

A 0.500-l sample of gas is at a pressure of 625 mm hg. what must the pressure be (in atm), at constant temperature, if the volume is changed to 925 ml?

What is a group of organisms in an ecosystem that are all members of the same species

Compare the temperature of water as ice begins to form with the temperature of ice as it begins to melt?

Which elements are present in sugars?

How does Q compare to Keg? O Q> Keq O Q< Kea OQ = Keg

What is the mass (in grams) of 9.09x10^24 molecules of methanol (CH3OH) ? AND How many moles of N are in 0.183g of N2O?

What are the basic building blocks of matter? A) molecules B) atoms C) electrons D) compounds