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Dafna1 [17]
3 years ago
14

Metals that really react with cold water are __________ and __________

Chemistry
1 answer:
miv72 [106K]3 years ago
8 0

Answer:

potassium and sodium

Explanation:

because they are the highest in the reactivity series

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It contains 0.105 mole cu

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Sodium sulfate reacts with carbon to produce the products sodium sulfide and carbon monoxide. Identify the reducing agent in the
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Consider the following system at equilibrium where H° = 16.1 kJ, and Kc = 6.50×10-3, at 298 K. 2NOBr(g) 2NO(g) + Br2(g)If the VO
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Answer:

1) The value of Kc : (C.) remains the same

2) The value of Qc : (A.) is greater than Kc

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4) The number of moles of Br2 will : (B.) decrease

Explanation:

Value of concentration equilibrium constant Kc depends only on temperature. Since temperature remains constant, therefore, Kc remains constant.  Decrease in volume means increase in pressure. Increase in pressure favors the side with less gaseous species.  Hence, increase in pressure will favor the reverse reaction towards reactants.

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3 years ago
A 10.11 g sample of NaBr contains 22.34 % Na by mass. Considering the law of constant composition (definite proportions), how ma
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Answer:

1.58\ \text{g}

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10.11 g sample of NaBr contains 22.34% Na by mass

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