Substance Reaction to flame Phase at room temperature Reaction with water Hydrogen Colorless Gas None Explodes Bubbling and reaction is hot. Potassium Burns and is likely to explode Silver Solid Sulfur Yellow Solid None Burns slowly and turns a color Strontium chloride White Crystalline Solid Dissolves Melts Which substance and explanation proves that no chemical change took place? O A Hydrogen because it did not react with water and will explode when exposed to a flame. O B. Potassium because it bubbles in water and will explode when exposed to a flame ondernin-

Substance Reaction to flame Phase at room temperature Reaction with water Hydrogen Colorless Gas None Explodes Bubbling and reaction is hot. Potassium Burns and is likely to explode Silver Solid Sulfur Yellow Solid None Burns slowly and turns a color Strontium chloride White Crystalline Solid Dissolves Melts Which substance and explanation proves that no chemical change took place? O A Hydrogen because it did not react with water and will explode when exposed to a flame. O B. Potassium because it bubbles in water and will explode when exposed to a flame ondernin-

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Please answer question 11 part A
When heated, solid calcium chlorate decomposes into calcium chloride solid, releasing oxygen gas.
Suppose a pair of chemical compounds A and B can react in two different ways: Reaction 1 gives product C. Reaction 2 gives product D. A+B C A+B D - The following facts are known about the two reactions: . Reaction 1 is exothermic and Reaction 2 is endothermic. energy • If a reaction vessel is charged ("filled") with A and B, then at first C is produced faster than D. Use these facts to sketch a qualitative reaction energy diagram for both reactions. Note: because these sketches are only qualitative, the energies don't have to be exact. They only have to have the right relationship to each other. For example if one energy is less than another, that fact should be clear in your sketch. A + B Reaction 1 reaction coordinate energy A + B Reaction 2 reaction coordinate X Ś
23. Which of the following statements is false about baking soda? a. Baking soda chemically yields carbon dioxide in the presence of moisture and alkali. b. Up to ¼ teaspoon of baking soda is required for each cup of flour to be leavened. Baking soda is only used when the flour mixture includes acidic ingredients. d. Acid reacts with baking soda and creates carbonic acid that then reacts to give off carbon dioxide and water.
Copper with air All equations should be balance and contain physical states.Write the chemical equation.Identify the type of reaction.
47. For the reaction Mg(s) + Cl2 (g) → MgCl2 (s), illustrate how electrons are gained and lost during the reaction.
Calcium nitrate and sodium hydroxide produce sodium nitrate and calcium hydroxide. Write the balanced equation and classify the reaction?
is formed from... Br NH2 N-H (A) (B) (C) (D) (E) O Compounds B and E Compounds A and E Compounds C and D Compounds A and D
Fill in the products for the copper cycle reaction between copper sulfate and magnesium metal. Include phases of all species. balanced chemical equation: CuSO4(aq) + Mg(s) → total ionic equation: Cu2+(aq) + SO2 (aq) + Mg(s) - → This reaction can be classified as which of the given types? double-displacement (sometimes called metathesis) combustion (a specific type of redox reaction) synthesis (a specific type of redox reaction, sometimes called combination) O oxidation-reduction (sometimes called redox)
Double Replacement Reactions
Chemical reactionc most comonly do work on their surroundings by a. having gases as reagents only b. Forming neutral solutions from acids and bases c. producing a lot of heat d. forming gas phase products
Express your answer as a chemical formula. ► View Available Hint(s) xa ΑΣΦ Xb a L a b 18 →>>> Submit Previous Answers 27 A chemical reaction does not occur for this question. ?