The most common source of copper (cu) is the mineral chalcopyrite (cufes2). how many kilograms of chalcopyrite must be mined to obtain 370. g of pure cu?

How many moles of NF3 contain 2.55 x 10^24 Fluorine atoms

Diol oxidation without C-C bond breakage ... which products are formed? The diol is " Ethane-1,2-diol"

The Asian shore crab (Hemigrapsus sanguineus) is an invasive species that has impacted the Atlantic coast. Predict what characteristic of this invader would most likely disrupt the biodiversity of this area.

Which of the following is not true for atoms? They are building blocks of matter They are made of protons, neutrons, and electrons They are able to be divided by a chemical reaction. They are the smallest particle of any element.

Define electronegativity. Where on the periodic table is the highest? Explain why this is the case.

The heart is an example of which level of organization within an organism? O cell organ tissue organ system O O

NaOH+HCl--> NaCl+H2O what is the total number of grams of H2O produced when 116 grams of the product, NaCl, is formed?

Is a sample of liquid nitrogen more dense than a sample of nitrogen gas

You have a balloon containing 1 L of air at STP in a vacuum chamber. What will the volume of the balloon be when you reduce the pressure by half and increase the temperature to 373 K?

Which method will correctly determine whether the forces on an object are balanced or unbalanced? A. Multiply the forces in the horizontal direction by the forces in the vertical direction. B.