It has been estimated that 8.0 tons of gold have been mined. assume that gold costs $1700 per ounce. what is the total worth of this quantity of gold?

Why do we heat water to make coffee? Explain.

All of the wabelenths are visible to the human eye except

What is 300 grams in pounds?

For c2h3o2-, write an equation that shows how the anion acts as a base.

A 5.00g sample of a carbohydrate (compound containing carbon, hydrogen, and oxygen) is found to contain 2.006g carbon, 0.334g hydrogen, and 2.66g oxygen. What is the percent by mass of oxygen in the carbohydrate

Defined the following convection

The study of matter and the changes that occurs in matter

Which would be a good source to find weather information about your town from last month? reference book about weather old copies of local newspapers a magazine with weather articles

What is the difference between a mixture, compound, element and pure substance

It takes 554 kJ to remove one mole of electrons from the atoms at the surface of a solid metal. How much energy does it take to remove a single electron from an atom at the surface of this solid metal?