CHEMISTRY HIGH SCHOOL

At STP fluroine is a gas and iodine is a solid, this observation can be explained by the fact fluroine has a .. ?a. weaker intermolecular forces of attraction than iodine
b. stronger intermolecular forces than iodine
c. lower average kinetic energy than iodine
d. higher average kinetic energy than iodine

Answers

Answer 1
Answer: A seems to be the best Answer

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Which change in oxidation number indicates oxidation?(1) –1 to +2 (3) +2 to –3
(2) –1 to –2 (4) +3 to +2

Answers

The change that shows an oxidation is the change  –1 to +2.

What is oxidation?

The term oxidation has to do with an increase in oxidation number. This increase will always be positive.

Hence, we have to look out for the change in which there is an increase in oxidation number and this occurs for the change –1 to +2.

Learn more about oxidation:brainly.com/question/13110055?

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Oxidation is the loss of electrons (OILRIG, oxidation is loss, reduction is gain), so that would mean a gain in charge (Well from negative to positive). The only one to show charge going up is (1)

Which of these does not describe the wright brothers first attempts at flight

Answers

Are there options for answers
As planned and went well. ( something positive most likely) but would need further info from the question to be sure

Hi! could you help with this (Brainlist + 50 points)

Answers

1. 44 grams

2. KCIO3

3. the third one

hope this helps :)

(True or False) It would be most appropriate to use the noble gas core [He] when writing the shorthand electron configuration for sulfur.

Answers

The answer is false.
No it should be Ne as it is its closest noble gas.

What is the carbon cycle

Answers

the series of processes by which carbon compounds are interconverted in the environment, chiefly involving the incorporation of carbon dioxide into living tissue by photosynthesis and its return to the atmosphere through respiration, the decay of dead organisms, and the burning of fossil fuels.
the cycle of thermonuclear reactions believed to occur in stars, in which carbon nuclei are repeatedly formed and broken down in the conversion of hydrogen into helium.

How many mole are in 2.84*10^22 molecules of h2

Answers

Avogadro's Number and the Mole. The mole is represented by Avogadro's number, which is 6.022×1023 atoms or molecules per mol.
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Carbon forms molecular compounds with some elements from Group 16. Two of these compounds are carbon dioxide, CO2, and carbon disulfide, CS2.Carbon dioxide is a colorless, odorless gas at room temperature. At standard temperature and pressure, CO2(s) changes directly to CO2(g). Carbon disulfide is formed by a direct reaction of carbon and sulfur. At room temperature, CS2 is a colorless liquid with an offensive odor. Carbon disulfide vapors are flammable. 59 Identify one physical property and one chemical property of CS2. [1]
Pleaseeeeeeeeeeeeee please helpYou have learned that the atomic number of a chemical is the number of protons found in the nucleus. Atomic numbers can be used to find the number of neutrons and electrons in an atom. In this project, you will practice atomic mass and atomic mass number calculation as well as fill out a chart using the periodic table. Don’t forget to read through the rubric below, so you will know what you will be graded on. When you are ready, upload it replacing the “Lastname” in the saved document name with your last name. Part I: The atomic number of the sodium atom is 11. The atomic mass number can be estimated by rounding the atomic mass to 23. From this information, you can find the number of neutrons: 11 protons plus how many neutrons equals a mass number of 23? The number of neutrons would have to be the difference between 23 and 11, which is 12. This fact can be restated this way: 11 protons plus 12 neutrons equals a mass number of 23. For every proton in the nucleus, an electron revolves around the nucleus. Since 11 protons are in sodium, 11 electrons must be in sodium. Using this information and the Periodic Table from lesson titled Periodic Table fill in the chart below. Element Atomic Number Atomic Mass How many neutrons? How many electrons? How many protons? Sodium 11 23 12 11 11 Chlorine Carbon Lead Iron Magnesium Uranium Cobalt Calcium Platinum Phosphorus