What occurs when a 35-gram aluminum cube at 100.°c is placed in 90. grams of water at 25°c in an insulated cup?
(1) heat is transferred from the aluminum to the water, and the temperature of the water decreases.
(2) heat is transferred from the aluminum to the water, and the temperature of the water increases.
(3) heat is transferred from the water to the aluminum, and the temperature of the water decreases.
(4) heat is transferred from the water to the aluminum, and the temperature of the water increases.
Answers: 2
Chemistry, 23.06.2019 00:30
On the periodic table, elements are arranged by which of the following. a. mass numbers. b. increasing atomic number. c. alphabetical order. or d. density
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Chemistry, 23.06.2019 06:30
Which of the following is true about the products formed during photosynthesis? (5 points) select one: a. they have the same mass as the mass of reactants. b. they are the same set of compounds as the reactants. c. they have more mass than the mass of reactants. d. they are chemically the same as the reactants.
Answers: 1
Chemistry, 23.06.2019 11:00
The standard emf for the cell using the overall cell reaction below is +2.20 v: 2al(s) + 3i2(s) → 2ai3+(aq) + 6i-(aq) the emf generated by the cell when [ai3+] = 3.5 × 10-3 m and [i-] = 0.015 m is v. the standard emf for the cell using the overall cell reaction below is +2.20 v: 2al(s) + 3i2(s) 2ai3+(aq) + 6i-(aq) the emf generated by the cell when [ai3+] = 3.5 × 10-3 m and [i-] = 0.015 m is v. 2.36 2.24 2.21 2.51 2.04
Answers: 2
What occurs when a 35-gram aluminum cube at 100.°c is placed in 90. grams of water at 25°c in an ins...
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