1) What coefficients are needed to balance this reaction? fill in the blanks
_Mg(NO3)2 --> _Mg(NO2)2 + _ O2

2) Calculate the molar mass of Cr4(P2O7)3. Make sure to round off atomic masses to the nearest whole number.
Cr = _ x _ = _
P = _ x _ = _
O = _ x _ = _
Molar mass = _g/mol

3) Interpret the following BALANCED equation by completing each statement below: 2 AL2O3 -> 4 AL + 3 O2
(1) The reaction above is an example of a __ (synthesis/decomposition/replacemen t/combustion)
(2) It means _ moles of AL2O3 decompose to produce _ moles of AL and _ moles of O2
(3) The mole ratio between AL2O3 and AL is _ moles AL2O3/ _ moles AL
(4) The mole ratio between AL and O2 is _ moles AL/ _ moles O2
(5) The mole ratio between AL2O3 and O2 is _ moles AL2O3/ _ moles O2

In the reading, yao chen-yuan describes traveling to deliver a message. why was he willing to risk danger to travelto tientsin? he wanted to the boxers with their cause

Which diagram shows the correct way to represent an ionic compound of magnesium oxide?

Predict the products of the following acid-base reactions, and predict whether the equilibrium lies to the left or to the right of the reaction arrow. part ao2-(aq)+h2o(l)< => express your answer as part of a chemical equation. identify all of the phases in your answer. o2-(aq)+h2o(l) < => oh-(aq)+oh-(aq)part bpredict whether the equilibrium lies to the left or to the right of the equation in previous part. h2o is a stronger acid than oh–, so the equilibrium lies to the right. h2o is a weaker acid than oh–, so the equilibrium lies to the left. h2o is a stronger acid than oh–, so the equilibrium lies to the left. h2o is a weaker acid than oh–, so the equilibrium lies to the right. part cch3cooh(aq)+hs? (aq) < => express your answer as part of a chemical equation. identify all of the phases in your answer. ch3cooh(aq)+hs-(aq) < => h2s(aq)+c2h3o2-(aq)h2s(aq)+c2h3o2-( aq)part dpredict whether the equilibrium lies to the left or to the right of the equation in previous part. ch3cooh is a weaker acid than h2s, so the equilibrium lies to the right. ch3cooh is a weaker acid than h2s, so the equilibrium lies to the left. ch3cooh is a stronger acid than h2s, so the equilibrium lies to the right. ch3cooh is a stronger acid than h2s, so the equilibrium lies to the left. part eno2-(aq)+h2o(l) < => express your answer as part of a chemical equation. identify all of the phases in your answer. no2-(aq)+h2o(l) < => part fpredict whether the equilibrium lies to the left or to the right of the equation in previous part. hno2 is a stronger acid than h2o, so the equilibrium lies to the right. hno2 is a weaker acid than h2o, so the equilibrium lies to the left. hno2 is a stronger acid than h2o, so the equilibrium lies to the left. hno2 is a weaker acid than h2o, so the equilibrium lies to the right.