1) According to the table, what was the temperature change from start to finish of each material? Styrofoam- metal- paper- plastic-

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The Bohr atomic model did not make correct predictions of large- sized atoms and provided sufficient information only for smaller atoms.

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To dissolve an ionic compound

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the water molecules must be able to stabilize the ions that result from breaking the ionic bond. They do this by hydrating the ions. Water is a polar molecule. ... When you place an ionic substance in water, the water molecules attract the positive and negative ions from the crystal.

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reversible

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The freezing of mercury is reversible because solid mercury can be melted.

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S+O2⇒SO2

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The balanced equation is S + O2 → SO2

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Carbon oxides and carbonates are exceptions; they contain carbon but are considered inorganic because they do not contain hydrogen. The atoms of an organic molecule are typically organized around chains of carbon atoms. Inorganic compounds make up 1%–1.5% of a living cell's mass.

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They are made up of only one type of element, which is carbon, and therefore would fail to be categorized as an organic compound since they are not, in the first place,a compound, but a pure element.

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Sodium is a highly reactive metal since it has 1 valence electron, while Iodine is a less reactive non metal with 7 valence electrons.

Answer:22.37 mph

Explanation:

100 meters = 0.062137 miles

Assume constant speed over the distance.

0.062137 miles in 10 sec

0.372822 miles in 60 sec = 1 minute

22.36932 miles in 60 minutes

22.37 mph rounded to 2 decimals

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Aristotal

His view of atoms was very different from how we think of atoms now but he was technically the first person to propose the basic idea of atoms.

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Because alkenes are hydrocarbons with at least one carbon-carbon double bond the alkene homologous series starts at ethene C2H4.

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so that the can keep reusing it and reusing it instead of wasting materials

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As light initially enters the water, it is refracted as in figure (b) and then reflected off the mirror (at the bottom of the glass). Upon exiting the water, the light is bent away from the normal as it passes from water (more dense) and into air (less dense).

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gas to liquid is condensation

liquid to solid is freezing

solid to liquid is melting

gas to solid is deposition

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Lyman series of hydrogen atom lies in the ultraviolet region, Balmer series lies in visible region, Paschen series lies in near infrared region whereas Bracket, Pfund as well as Humphrey series lie in far infrared region of electromagnetic spectrum.

Answer:

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Explanation:

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The number of atoms in one mole of Calcium and one mole of Carbon Dioxide is the same.

The number of atoms is determined by Avogadro's number (a constant number that determines the atoms per mole).

Avogadro's number is equivalent to 6.02 x 10²³ atoms.

This means one mole of each element contains 6.02 x 10²³. However, this number of atoms changes according to the amount of the substances or moles.

How many atoms does 1 mole of Calcium and 1 mole of Carbon Dioxide contain?

Considering these are two different substances but the number of moles is the same (1 mole each) the number of atoms is equal to Avogadro's number or 6.02 x 10²³ atom.

Learn more about atoms in: https://brainly.com/question/13981855?referrer=searchResults

Answer:That's 25.8 g of calcium carbonate In 100 g of the sample.

Explanation:

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If a gas contracts by 1/273 of its volume for each degree of cooling, it should contract to zero volume at a temperature of –273°C; this is the lowest possible temperature in the universe, known as absolute zero.It appeared that an “ideal gas” at constant pressure would reach zero volume at what is now called the absolute zero of temperature. Any real gas actually condenses to a liquid or a solid at some temperature higher than absolute zero. Therefore, the ideal gas law is only an approximation to real gas behaviour.

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Explanation:

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The specific heat of Barium is 0.204 J/g K

The youngest rock layers are at the top and the oldest are at the bottom, which is described by the law of superposition.

I think the lake because of how heat is transferred or something. Just check out the first law of thermodynamics.

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Like other alkali metals, rubidium metal reacts violently with water. As with potassium (which is slightly less reactive) and caesium (which is slightly more reactive), this reaction is usually vigorous enough to ignite the hydrogen gas it produces.  

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See Explanation.

Explanation:

Element Name: Neon (check a periodic table)

Atomic Number: 10 (number of protons)

Atomic Mass: 20 (number of protons + number of neutrons [electrons have negligible mass])

Protons: 10 (P in the black circle)

Electrons: 10 (number of red dots)

Neutrons: 10 (N in the black circle)

Valence Electrons: 8 (number of red dots on the outermost ring)

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Explanation:

vinegar or acetic acid is an acid

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