How many copper atoms are in 70 grams of copper

What is the name of the group of elements that have properties of both metals and nonmetals? Alkaline earth metals Alkali metals Metalloids Noble gases

The chic woman always wore fashionable clothes and was invited to every social event in the city. Based on the clues in the sentence, what is a synonym for chic? sloppy unfashionable stylish quiet

Consider the following unbalanced equation: Li2S (aq) + Bi (NO3) 3 (aq) → LiNO3 (aq) + Bi2S3 (s) If 20.5 moles of Li2S (aq) reacts with an excess of Bi (NO3) 3 (aq), what is the theoretical yield of LiNO3 (aq) in moles?

Explain why organisms need to maintain homeostasis

How many atoms are in a sample of chromium with a mass of 13 grams?

How does the conservation of matter relate to balancing equations?

Ethanoic acid and 1-butanol can react to produce water and a compound classified as an 1) aldehyde 2) amine 3) ester 4) halide

Sodium metal reacts with water to form aqueous sodium hydroxide and hydrogen gas. which equation below best describes the balanced equation for this reaction?

2H2 + O2 - - > 2H2O If 16 mol of oxygen were reacted with excess hydrogen gas, how many moles of water would be produced?

Which subatomic particle identifies an atom as that of a particular element? how is this particle related to the atoms atomic number