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Anna11 [10]
2 years ago
9

Name the following cycloalkane:

Chemistry
1 answer:
KonstantinChe [14]2 years ago
8 0

B is the correct answer

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Which statement is FALSE? a. ΔHrxn is the heat of reaction. b. ΔErxn is a measure of heat. c. An exothermic reaction gives heat
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Answer:

b. ΔE rxn is a measure of heat

Explanation:

a. ΔHrxn is the heat of reaction. <em>TRUE. </em>ΔHrxn or change in enthalpy of reaction is per definition the change in heat that is involved in a chemical reaction.

b. ΔErxn is a measure of heat. <em>FALSE. </em>Is the change in internal energy of a reaction

c. An exothermic reaction gives heat off heat to the surroundings. <em>TRUE</em>. An exothermic reaction is a chemical reaction that releases heat.

d. Endothermic has a positive ΔH. <em>TRUE. </em>When a process is exothermic ΔH<0 and when the process is endothermic ΔH>0

e. Enthalpy is the sum of a system's internal energy and the product of pressure and volume. <em>TRUE. </em>Under constant pressure and volume the formula is ΔH = ΔE + PV

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3 years ago
Scientists Discuss time and how old the Earth is. How do they measure the idea
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The following is the introduction to a special e-publication called Determining the Age of the Earth (click the link to see a table of contents). Published earlier this year, the collection draws articles from the archives of Scientific American. In the collection, this introduction appears with the title, “Stumbling Toward an Understanding of Geologic Timescales.”

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2 years ago
The metals in Groups 1A, 2A, and 3A ____. a. gain electrons when they form ions c. all have ions with a 1+ charge b. all form io
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4A I think I'm sorry if it is wrong
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PLEASE HELP ASAP - WILL GIVE YOU BRAINIEST Can someone please help me figure out the correct answer to a science problem? I need
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independent variable: how much bread is there

dependant variable: temperature, location, time, size.

hypothesis, the one with the bread will be way more moist than the one without.

control group: no bread at all.

experimental group: brownies with bread

constants: same tupperware, placement, time, size.

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Scientists are often interested in knowing the
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Answer:0.004993 mols

Explanation:

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