The Groups 1 and 2 on the periodic table contain what atom type?

A) metals

B) metalloids

C) non-metals

D) noble gases

Draw the structural formula for hydrogen fluoride, hf, and state the type of bond in a hydrogen fluoride molecule.

Which of the following would not neutralize a solution of H2SO4? sodium hydroxide nitric acid lithium hydroxide ammonia

La fuerza de la gravedad (g) en Marte es de 3.7 m / s. Si un astronauta en Marte levanta una roca de 10 kg a 1 m del suelo, solo para ver qué hay debajo, cuánto trabajo tiene el astronauta realizado?

An apple turning brown after being cut is an example of what type of change

Which of the following are density labels? Kg/L g/m g/mL cm/g

IKI will turn deep purple in the presence of starch. Which term is applied to IKI in this situation? A. indicator B. litmus C. modifier D. product

How many electrons are in the 2p sublevel of nitrogen?

Which answer choice correctly lists the elements found in Period 2 of the periodic table? A. oxygen, fluorine, neon B. sodium, magnesium, aluminum C. nitrogen, phosphorus, arsenic D. beryllium, magnesium, calcium

Write the chemical formula for each compound described. a) barium chloride (1 Ba ion, 2 Cl ion)

Acetonitrile (CH3CN) is an important industrial cheical. Among other things, it Is used to make plastic moldings, which have multiple uses, from car parts to Lego bricks. Which statement below about acetonitrile is FALSE? a.