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New questions and challenges in Chemistry
Chemistry, 16.10.2023 20:21
A gasoline-powered generator is used to provide lighting for a house. Which sequence describes the conversions of energy from the generator to the light bulb? A. Electrical energy, generat...
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Chemistry, 13.10.2023 20:50
A human services worker has begun a plan of action for a juvenile offender. She discovers he has skipped a couple of counseling sessions to stay home and play the latest World of Warcraft video game....
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Chemistry, 01.10.2023 20:23
imagine that you could dive deep into the Atlantic Ocean where the south American and African plates meet at a plate boundary...
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Chemistry, 21.02.2023 14:00
Which of the following can be calculated from the mass of the reactants used in a chemical reaction?Amount of limiting reactant used in a reactionActual yield of productsAmount of excess reactant from...
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Chemistry, 21.02.2023 14:00
Why are group IA elements called alkali metals??...
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Chemistry, 20.02.2023 14:00
Why is group IIA elements called alkali earth metals??...
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Chemistry, 19.02.2023 21:00
The question is in the photo (Sorry for being lazy lol ) ...
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Chemistry, 18.02.2023 20:50
Why are group VIA elements called halogens??...
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Chemistry, 14.02.2023 14:00
What is the limiting reagent when 1.5 moles of nitrogen react with 6 moles of hydrogen? N2(g)+3H2(g)—> 2NH3(g)...
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Chemistry, 12.02.2023 14:00
Turn the following word equation into a symbolic equation: potassium hydroxide and hydrobromic acid react to form potassium bromide and water. ...
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Chemistry, 10.02.2023 14:00
Keesha performed a chemical reaction and the products looked quite different from the reactants. She knew the amount of matter had not changed due to the law of conservation of mass. According to the...
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Chemistry, 08.02.2023 15:40
Describe how ionic compounds are named. What element goes first, and which goes second?...
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Chemistry, 07.02.2023 19:15
Juanita drew a venn diagram to compare reproduction in sponges and cnidarians. which label belongs in the area marked x?...
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Chemistry, 05.02.2023 09:40
How many kilojoules of heat are absorbed when 950 mL of water is heated from 27 degrees Celsius to 79 degrees Celsius? The specific heat of water is 4.18 J/g-C. Answer choices: 104 kJ 12 kJ 120 kJ 206...
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Chemistry, 04.02.2023 03:50
Not a timed or graded assignment. Please show all calculation work. Question prompt “what mass of the excess reactant HCI will be used”. Quick answer showing work = amazing review :) ...
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Chemistry, 02.02.2023 14:00
If we have 4.50 mol of sodium and 2.25 mol of iron (III) nitrate which reactant is the limiting reactant?...
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Chemistry, 01.02.2023 20:30
What is the pressure of a gas of 0.0925 moles occupies 152 ml at 185 degrees celcius...
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Chemistry, 30.01.2023 19:20
What do cocaine, amphetamines, caffeine, nicotine, and MDMA (ecstasy) all have in common? Select one: a. They all increase the activity of the nervous system. b....
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Chemistry, 29.01.2023 08:50
Which form of energy can be connected closely to climate change? a) coal b) wind c) hydroelectric d) solar...
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Chemistry, 28.01.2023 14:00
A gas mixture contains 1.26 g N2 and 0.76 g O2 in a 1.51 L container at 11 C. Calculate the partial pressure of N2?...
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