Is it easier to identify an unknown metal by such as physical properties as colour, lustre, mass, and volume, or by characteristic physical property such as density? Explain your answer.

Which combination of elements below will bond ionically and in the same ratio as lithium when it bonds to sulfur? A) carbon and oxygen B) sodium and oxygen C) calcium and nitrogen D) aluminum and chlorine

An atom of 14 6 c carbon decays by gamma decay which atom is left after the decay

Which is an example of practical pursuit of alchemy

An unknown solution has a pH of 7. how would you classify this solution? A. neutral B. acidic C. basic D. not enough information

Which of these is not a part of the endocrine system? A. Pituitary gland B. Urethra C. Thymus D. Pancreas E. Thyroid

What is the net ionic equation for AgNO3 (aq) + Na2SO4 (aq)

What does it take to prove a hypothesis false? O A. It is impossible to prove a hypothesis false O B. At least ten examples O C. One counterexample O D. A poorly stated question

We dissolve 5g of sugar, C12H22O11, in water to make 1L solution. What is the concentration of this solution expressed as molarity.

Explain how the molar mass of a gas affects the rate at which the gas diffuses and effuses

Wat is a redox reaction