Why are parentheses used to write the formula AI (OH) 3

Which equation represents a neutralization reaction? A) 6HC1O - > 4HCL + 2HCLO3 B) CH4 + 2O2->CO2+2H20 C) Ca (OH) 2+H2SO4->CaSO4+2H2O D) Ba (OH) 2+Cu (NO3) 2->Ba (NO3) 2+Cu (OH) 2

1.10 atoms of aluminum reacts with 6 molecules of oxygen gas to produce aluminum oxide. 4 Al + 3 02-> 2 Al2O3 How many atoms or molecules of the excess reactant remain? a. 2 atoms b. 6 molecules c. 10 atoms d. 3 molecules

Calculate the empirical formula of the following compound: 45,3 % Oxygen; 43,4 % Na; 11,3 % C

The chemical equation below shows the decomposition of ammonium nitrate (NH4NO3). NH4NO3 → N2O + 2H20 A chemist who is performing this reaction starts with 160.1 g of NH4NO3. The molar mass of NH4NO3 is 80.

What is the total number of moles of hydrogen gas contained in 9.03 x 10²³ molecules?

Generally, when going down a group on the periodic table: atomic radii decrease ionic radii increase electronegativity increases reactivity decreases

Predict: What element would result from the beta decay of Bromine?

How many carbon atoms are present in 1.84 moles of C2H6O?

A student took the weighted average of the isotopes that make up one element. What was the student trying to determine?

Chemicals that cause cancer or called