Question Acids and bases are compounds with very different properties. Which of the following is a property of an acid as opposed to a base?
A) Reacts with most metals

B) Has a pH above 7

C) Feels slippery

D)Is soluble in water

The answer is b carbon-14. the radioactive isotope of carbon used in carbon dating has a half-life of 5730 years. potassium-40 is used to date 1.25 billion years

Non metal is an element or substance that is not a metal metal is a solid material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivitymetalloid is an element (e.g., germanium or silicon) whose properties are intermediate between those of metals and solid nonmetals. they are electrical semiconductors.