How many atoms are in 2.6 moles of gold

Why should the scientific method be used to answer a question? a. it provides a way to test an idea without any bias. b. it provides a way to test a hypothesis. c. it provides a way to ensure all hypotheses are proven correct. d. it provides a way to quickly turn a hypothesis into a scientific theory.

What semimetal can form four single covalent bonds.

In a reaction (at equilibrium) that makes more moles of gas than it consumes, what is the effect of increasing the pressure?