Chemistry, 28.07.2019 18:30 Andychulo7809
For the chemical reaction h2 + co2 → h2o + co, the energy contained in the reactants is 394 kj, and the energy contained in the products is 352 kj, assuming 1 mol of each substance is present. which of the following statements is true? 42 kj is released, and the reaction is endothermic. 42 kj is absorbed, and the reaction is exothermic. 42 kj is absorbed, and the reaction is endothermic. 42 kj is released, and the reaction is exothermic.
Answers: 1
Chemistry, 23.06.2019 03:40
The following questions a24 - a26 relate to 100 ml of 0.0150 m solution of benzoic acid (c6h3cooh). ka(c6h3cooh) = 6.4 x 10^-5. what is the ph of the solution after the addition of 1 x 10^-3 moles of naoh? you may assume no volume change to the solution upon addition of the naoh.
Answers: 2
Chemistry, 23.06.2019 04:20
The equation below shows the reaction of zinc with hydrochloric acid (hcl). zn (s) + 2 hcl (aq) —> zncl2 (aq) + h2 (g) what will happen if the concentration of hcl is decreased? a. more zncl2 will be produced. b. the reaction rate will slow down. c. the hydrochloric acid will become more acidic. d. the reaction will produce water instead of hydrogen gas.
Answers: 1
Chemistry, 23.06.2019 06:20
Type the correct answer in each box.balance the chemical equation.__ n203 ➡️ __ n2 +__ o2
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Chemistry, 23.06.2019 11:00
Which example is a mechanical wave? a.microwave b.radio wave c.water wave d.ultraviolet light
Answers: 1
For the chemical reaction h2 + co2 → h2o + co, the energy contained in the reactants is 394 kj, and...
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