Explanation: The chemical formula for lead (IV) oxide is: #PbO_2# Formulas describe one compound. Reactions describe changes that involve multiple chemical substances which can include both …

The chemical formulas are a) "MgCl"_2 and b) "LiF". Magnesium Chloride A "Mg" atom has two valence electron. It can get a complete shell if it loses these electrons. A "Cl" atom has seven valence …

Your strategy here will be to write the balanced chemical equation for the two reactions between the weak base and the strong acid, and use equation stoichiometry to try and find two relationships …

You will need 11 g of "KClO"_3 > There are four steps involved in this stoichiometry problem: Step 1. Write the balanced chemical equation. M_r:color (white) (m) 122.55 color (white) (mmm)"2KClO"_3 …

Explanation: Step 1. Write the balanced chemical equation. The balanced equation is 2NaN3 → 2Na +3N2 Step 2. Strategy The problem is to convert grams of NaN3 to moles of N2 and volume of N2. …

x^6-64= (x-2) (x+2) (x^2+2x+4) (x^2-2x+4). We use here formulas a^3-b^3= (a-b) (a^2+ab+b^2) and a^2-b^2= (a+b) (a-b). Therefore x^6-64 = (x^2)^3- (2^2)^3 = (x^2-2^2 ...

How do you use double angle formulas to calculate cos 2x and sin 2x without finding x if #cos x = 3/5# and x is in the first quadrant?

The decay of a radioactive element is a random process which is governed by the laws of chance. The rate of decay only depends on the number of undecayed atoms. This means that the more atoms of …

Q&A and Videos that make learning easy. Math, History, Chemistry, Algebra, Calculus, Biology and more.

Q&A and Videos that make learning easy. Math, History, Chemistry, Algebra, Calculus, Biology and more.