Why was gold not historically used for tools?

How does th composition of a mixture of hydrogen and oxygen differ from the composition of a compound containing hydrogen and oxygen?

What does it mean for a little strong acid to be in equilibrium? a. The equilibrium lies far to the right so that products

A thief plans to steal a gold sphere with the radius of 28.9cm from a museum. If the gold has a density of 19.

Why is water an excellent solvent for most ionic compounds and polar covalent molecules but not for non-polar compounds? A) Water is a polar molecule. B) Water has a charge like an ion. C) Water is a deionizing substance.

Is SnF2 a compound or mixture?

At 300 k the pressure inside a gas filled container is 500 kPa if the pressure inside decreses to 100kpa but the volume remains the same what is the final temperature of the gas

The SI unit for current is: joules volts ohms amps

In chemical reactions, there is a conservation of what?

If the temperature of water increases as you heat it, the temperature is the independent variable. True False

Which is made by weathering? A. sediments B. minerals C. ash D. magma