Is quartz an element or compound?

Which of the following substance is combustible? Wood, asbestos or granite

A student investigated the rate of reaction between sodium thiosulphate and dilute hydrochloric acid the student placed a conical flask over a cross on a piece of paper the student mixed the solutions in the flask the solution went cloudy the

How are evaporation and condensation related?

Balanced or unbalanced? CsHg+O+H20+CO2

Ammonia is often formed by reacting nitrogen and hydrogen gases. how many liters of ammonia gas can be formed from 22.7 l of hydrogen gas at 93.0°c and a pressure of 49.6 kpa?

When does a spring tide take place? At the beginning of spring Only during the spring season Only after spring is over At any time

The highest cloud are known as

What is the mass of 4.85 X 10^22 atoms of iron (Fe) ?

If element x has 95 protons how many electrons does it have

Which of the following when dissolved in deionized water would make a good conducting solution? a) methanolb) sugarc) baking soda