Equation unbalanced

We begin by writing unbalanced equations for the oxidation and reduction half-reactions in part (a). [Pg.748]

Follow die directions of Question 59 for the following unbalanced equations. [Pg.98]

Hydrogen gas is bubbled into a solution of barium hydroxide that has sulfur in it. The unbalanced equation for the reaction that takes place is... [Pg.98]

Consider the reaction between silver and nitric acid for which the unbalanced equation is... [Pg.98]

Limonite, an ore of iron, is brought into solution in acidic medium and titrated with KMn04. The unbalanced equation for the reaction is... [Pg.98]

Laws passed in some states define a drunk driver as one who drives with a blood alcohol level of 0.10% by mass or higher. The level of alcohol can be determined by titrating blood plasma with potassium dichromate according to the unbalanced equation... [Pg.99]

The first step In balancing a redox reaction is to divide the unbalanced equation into half-reactions. Identify the participants in each half-reaction by noting that each half-reaction must be balanced. That Is, each element In each half-reaction must be conserved. Consequently, any element that appears as a reactant In a half-reaction must also appear among the products. Hydrogen and oxygen frequently appear in both half-reactions, but other elements usually appear In just one of the half-reactions. Water, hydronium ions, and hydroxide ions often play roles In the overall stoichiometry of redox reactions occurring in aqueous solution. Chemists frequently omit these species in preliminary descriptions of such redox reactions. [Pg.1359]

C21-0008. Sulfur tetrafluoride fluorinates boron trichloride according to the following unbalanced equation BCI3 + SF4 BF3 + SCI2 + CI2 This is both a redox reaction and a metathesis reaction, (a)... [Pg.1511]

Which of the following reactions (indicated by unbalanced equations) occur in acid solution and which occur in basic solution ... [Pg.226]

The formation of a sol-gel functional silica gel takes place by hydrolytic polycondensation of suitable precursors in the presence of a dopant in solution. An example is given in the following (unbalanced) equation ... [Pg.11]

First, write an unbalanced equation, showing the reactants and products ... [Pg.33]

Which of the following unbalanced equations represent redox reactions Explain your answers. [Pg.144]

One of the following unbalanced equations represents a redox reaction and one represents a reaction that is not a redox reaction. Select the equation that is a redox reaction and answer the questions that follow. [Pg.145]

Step 1 Write an unbalanced equation from the given information. [Pg.496]

State whether the reaction shown in each of the following unbalanced equations is a redox reaction. If so, identify the oxidizing agent and the reducing agent. Balance each equation. [Pg.561]

Which of the following unbalanced equation(s) demonstrates aluminum hydroxide s amphoteric properties ... [Pg.27]

You can balance unbalanced equations by adding or changing coefficients to produce correct ratios. (It s important not to change subscripts, however, because to do so changes the compound s identity—H20 is water, but H202 is hydrogen peroxide ) For example, to balance the preceding equation, add a 3 before the NO ... [Pg.293]

The first step is to write the balanced equation for the reaction (if it is not given). This step requires knowledge of the experimental facts. We note in the text that, when KC103 is decomposed by heating, the products are KC1 and O2- so we start with the unbalanced equation... [Pg.174]

The answers to these problems are given as the numerical coefficients needed to balance the equations, and in the order in which the substances appear in the unbalanced equations. [Pg.441]

Write the unbalanced equation using the correct chemical formula for each reactant and product. In the reaction of hydrogen with oxygen to yield water, for example, we begin by writing ... [Pg.76]

Step 1 Write the unbalanced equation using correct chemical formulas for all substances ... [Pg.77]

Step 2 Find coefficients to balance the equation. It7s usually best to start with the most complex substance—in this case C3H8—and to deal with one element at a time. Look first at the unbalanced equation, and note that there are 3 carbon atoms on the left side of the equation but only 1 on the right side. If we add a coefficient of 3 to C02 on the right, the carbons balance ... [Pg.77]

I3 ion that results with thiosulfate solution in the presence of a starch indicator. The unbalanced equations are... [Pg.156]

A certain semimetal M emits electrons only when struck by radiation with a minimum frequency of 9.07 X 1014 s 1. On heating a 0.200 g sample of the semimetal in air, the corresponding oxide M2O3 was obtained. When the oxide was dissolved in aqueous acid and titrated with KMnO 10.7 mL of 0.100 M MJ1O4- was required to reach an equivalence point. The unbalanced equation is... [Pg.198]

Element M is prepared industrially from its oxide by a two-step procedure according to the following (unbalanced) equations ... [Pg.241]

Acid spills are often neutralized with sodium carbonate or sodium hydrogen carbonate. For neutralization of acetic acid, the unbalanced equations are... [Pg.339]

PROBLEM 9.12 Propane gas (C3H8) is used as a fuel in rural areas. How many liters of C02 are formed at STP by the complete combustion of the propane in a container with a volume of 15.0 L and a pressure of 4.5 atm at 25°C The unbalanced equation is... [Pg.355]

Ethyl alcohol, C2H5OH, can be made by the fermentation of glucose, C6H1206, as indicated by the (unbalanced) equation ... [Pg.37]

Calculate the mass (g) of FeSC>4 that will be oxidized by 24.0 mL of 0.250 N KM11O4 in a solution acidified with sulfuric acid. The unbalanced equation for the reaction is below. The statement of normality of KMnC>4 is with respect to this reaction (Mn changes from +7 to +2 during this reaction). [Pg.216]

A 0.518-g sample of limestone is dissolved, and then the calcium is precipitated as calcium oxalate, CaC2C>4. The precipitate is filtered, washed, and dissolved in sulfuric acid solution. It then requires 40.0 mL of 0.0500 M KMn( >4 solution to titrate it. What is the percent CaO in the limestone The unbalanced equation for the titration is... [Pg.220]

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