Which material(s) is a homogenous mixture, or solution?
i. lead
ii. carbon dioxide
iii. apple juice (filtered)
iv. helium v. sand in water
vi. sodium bicarbonate (baking soda)
a. i and iv
b. ii and vi
c. iii
d. v
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Which material(s) is an element? i. lead ii. carbon dioxide iii. apple juice (filtered) iv. helium v. sand in water vi. sodium bicarbonate (baking soda) a. i and iv b. ii and vi c. iii d. v
Which material(s) is a compound? i. lead ii. carbon dioxide iii. apple juice (filtered) iv. helium v. sand in water vi. sodium bicarbonate (baking soda) a. i and iv b. ii and vi c. iii d. v
3. Some commercial baking powders contain a mixture of sodium bicarbonate (baking soda) and calcium dihydrogen phosphate. When the powder is moistened, carbon dioxide s is liberated and makes the batter or dough rise. Balance the equation for the following reaction. NaHCO Ca(H2PO4)2 ),-. Na2HPO4 + CaHPO4 + CO2 + H2O
26. Which of the following processes is NOT spontaneous? a. Iron in moist air rusts. b. Carbon dioxide and water react to form sugar and oxygen gas. c. Liquid water in a freezer turns to ice. d. A spark ignites a mixture of propane and air. e. Baking soda (sodium hydrogen carbonate) reacts with lemon juice (dilute citric acid).
I have completed this lab (Experiment 13 Acid and Base, Part 2) and want feedback on if I doing the equations correctly? I have included my answers in the question. Are these correct? Pour about an inch of lemon juice into one jar and label it "acid." Put two level teaspoons of baking soda and about half a tablespoon of water in another jar. Now pour a tablespoon of lemon juice acid into the third jar for testing. Add the...
An unknown solution was treated with H2SO4 and refluxed for 2 hours. The mixture was then washed with water and the organic layer was treated with 10% sodium bicarbonate until the aqueous solution drained off was basic. The organic layer was again washed with water, dried with magnesium sulfate, and filtered. The final product was propyl butyrate. What was the starting material and reactants?
Solute settles down for which of the following mixture. Salt and water Homogenous mixture True Solution Colloid Suspension
31. Which of the statement(s) regarding hydroboration is(are) true? I. The reaction with terminal olefins is regioselective. II. It proceeds through a carbocation intermediate. II. It yields the Markovnikov product. IV. It proceeds through a cyclic transition state. V. The hydrogen on boron adds to the carbon with the most hydrogens already attached to it. VI. The first step is a Lewis acid-base reaction. VII. The boron predominantly adds to the least substituted carbon. 3 F. I, II, IV, and...
Solute settles down for which of the following mixture. Salt and water Homogenous mixture True Solution O Colloid O Suspension
Which of the following are examples of homogenous catalysis? i.) SO2 over vanadium (V) oxide ii.) Pd in H2 gas iii.) Pt with methane iv.) KI dissolved in H2O2 v.) CFCs with ozone A. i, ii and iii B. iv and v C. i, iv and v D. ii, iii, and v E. none of the above combinations.