Who first established the heliocentric view

Which phrase describes a compound that consists of two elements? (1) a mixture in which the elements are in a variable proportion (2) a mixture in which the elements are in a fixed proportion (3) a substance in which the elements are chemically

A base is a substance that accepts protons. true or false?

You record the sea temperature at 12 degrees North 45 degrees West to be 27.5 degrees Celcius the humidity to be very high and a very light breeze, do you expect a hurricane to form in these conditions? Explain why or why not

The weight percent of concentrated HClO4 (aq) is 70.5% and its density is 1.67 g/mL. What is the molarity of concentrated HClO4

What is the molarity of the unknown hcl solution?

The Arrhenius theory explains the behavior of (1) acids and bases (2) alcohols and amines (3) isomers and isotopes (4) metals and nonmetals

Dalton's atomic theory

Describe how food is digested and absorbed

If a solution A has twice as much solute as solution B. Is it possible for the solutions to have the same concentration?

Chris is studying oxidation and reduction reactions. Which of the following could she use as an example of an oxidation reaction?