Chemistry
Chemistry, 23.07.2019 21:30, TamB01

What kind of thermochemical equation is represented below? cao(s) + h2o(l) —> ca(oh)2(s) + 65.2 kj a. endothermic b. exothermic c. neutralization d. single replacement reaction

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Chemistry, 23.07.2019 14:00, alicat20
Anyone know any of these? pls , need to correct asap energy changes occur as * a.heat transfer b.work c.power d.a combination of heat transfer and work when heat energy is absorbed from surroundings * a.it is an exothermic process b.it is an endothermic process c.a chemical change must occur d.it feels warm to the touch 1 calorie is equal to (mark all that apply) * a.2 points b.1,000 kilocalories c.1 kilocalorie d.1,000 calories heat capacity depends on * a.pressure b.mass c.density d.joules 1 calorie is equal to * a.4.184 j b.1,000 j c.6.02x10²³ j d.8.314 j condensation is * a.a chemical exothermic process b.a physical exothermic process c.a chemical endothermic process d.a physical endothermic process what kind of thermochemical equation is represented below? * a.endothermic b.exothermic c.neutralization d.single replacement reaction when 435 j of heat is added to 3.4 g of olive oil at 21°c, the temperature increases to 85°c. what is the specific heat of olive oil? show your work for credit. * a.94,656 j/g°c b.2.0 j/g°c c.23 j/g°c d.1.5 j/g°c a positive δ h value indicates that the reaction is * a.endothermic b.exothermic c.neutral d.synthesis
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Chemistry, 27.07.2019 11:00, aliyahgregory
When ammonium chloride is dissolved in water, the beaker gets cold. which type of reaction does this describe? exothermic endothermic both exothermic and endothermic neither exothermic nor endothermic?
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Physics, 31.08.2019 16:10, shamim5364
One classic chemistry experiment involves the reaction of hydrochloric acid and magnesium ribbon. a small piece of magnesium ribbon is placed in a test tube and hydrochloric acid is added to cover the magnesium. students observe that the test tube gets hot, a gas (bubbles) is produced, and when a lit match is inserted in the mouth of the test tube, a loud "bark" is heard. this reaction is represented by the equation: mg + 2hcl → mgcl2 + h2 the reaction can be described as both a reaction and a(n) reaction. a) synthesis; endothermic b) neutralization; exothermic c) decomposition; neutralization d) single replacement; exothermic
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What kind of thermochemical equation is represented below? cao(s) + h2o(l) —> ca(oh)2(s) + 65.2...

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