Magnesium hydroxide (Mg(OH) 2), as "Milk of Magnesia" can be used to neutralize excess stomach acid, represented by HCl(aq): Mg(OH) 2(s) + 2HCl(aq) → MgCl 2(aq) + 2H 2O(l) When 5.00 g of HCl are combined with an excess of Mg(OH) 2, what mass of MgCl 2 can be produced? [Use molar masses: H, 1.01 g/mol; O, 16.00 g/mol; Mg, 24.31 g/mol; Cl, 35.45 g/mol]

A     student     carried     out     the     reaction     below     starting     with     1.993     g     of    unknown     (X2CO3),     and    found    that    the    mass    loss    due    to    CO2 was    0.593    g.           X2CO3(s)        +        2    HCl(aq)        →        2    XCl(aq)        +        H2O(l)        +        CO2(g)     What    is    the    molar    mass    of    the    alkali    metal    X?

Predict the reactants of this chemical reaction. That is, fill in the left side of the chemical equation. Be sure the equation you submit is balanced. (You can edit both sides of the equation to balance it, if you need to.) Note: you are writing the molecular, and not the net ionic equation. →KClO2(aq)+H2O(l)

According to the following reaction, how many grams of chlorine gas are necessary to form 0.672 moles phosphorus trichloride? PA(s) + 6C12 (g) → 4PCI3 (t) chlorine gas

The balanced chemical equation is P₄(s) + 6 Cl₂(g) → 4 PCl₃(g). What is the mass in grams of phosphorus trichloride that can be formed from 226.0 grams of chlorine gas based on the balanced chemical equation?

Predict the reactants of this chemical reaction. That is, fill in the left side of the chemical equation. Be sure the equation you submit is balanced. (You can edit both sides of the equation to balance it, if you need to.) Note: you are writing the molecular, and not the net ionic equation. [] + KClO(aq) + H,O(1) · X Ś

What is the total number of hydrogen atoms on the right-hand side of this chemical equation? 8 Al(s)+3NANO,(aq)+5NaOH(aq)+18H,0(1) → 8 NaAl(OH)4(aq)+3NH3(g)

Predict the reactants of this chemical reaction. That is, fill in the left side of the chemical equation. Be sure the equation you submit is balanced. (You can edit both sides of the equation to balance it, if you need to.) Note: you are writing the molecular, and not the net ionic equation. [] → Ba(C1O₂)₂(aq) + H₂O(1) 2 X G

Use the concept of molarity to calculate the molarity of a solution prepared by dissolving 25.00 g of Co(NO3)2 in enough water to make 500.0 mL of solution.  (For cobalt(II) nitrate, molar mass = 182.94 g/mol)

Predict the reactants of this chemical reaction. That is, fill in the left side of the chemical equation. Be sure the equation you submit is balanced. (You can edit both sides of the equation to balance it, if you need to.) Note: you are writing the molecular, and not the net ionic equation. [[] → BaCl₂(aq) + H₂O(1) X S