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Chemistry

The Modern atomic model includes electrons orbiting the nucleus. WHich of the following parts of the Dalton's atomic model was disproved by the discovery of the electron?

A) Atoms are tiny particles

B) Atoms cannot be divided into smaller parts

C) Atoms have specific mass and size

D) Atoms have specific chemical properties

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Chemistry

Explain why bromine does not react with aqueous potassium chloride

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Chemistry

Beaker A contains 2.06 mol of copper, and Barker B contains 222 grams of silver. Which beaker the larger number of atom?

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Chemistry

How do muscles work in pairs to make parts of the body move?

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Chemistry

Bamboo can grow up to 60.0 cm/day. Convert this growth rate into inches per hour

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Chemistry

What is the formula of the ionic compound expected to form between the elements mg and s?

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Chemistry

The formula of a salt is XCl2. The X-ion in this salt has 26 electrons. The metal X is A) Fe B) V C) Pd D) Ni E) Zn

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Chemistry

What is a mate meteor made of

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Chemistry

What is the density of krypton gas at STP?

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Chemistry

Which formula contains two nonmetals

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Chemistry

The wearing away and removal of rock or sediment is called a.) weathering b.) depostion c.) erosion

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Chemistry

Which tool would be best for measuring length? A. stopwatch B. meter stick C. graduated cylinder D. triple-beam balance

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Chemistry

How many moles of hcl are present in 0.70 l of a 0.33 m hcl solution? (molar mass of hcl = 36.46 g/mol?

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Chemistry

What is the function of an arrow (-7) and a plus sign () in a chemical equation?

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Chemistry

A sample of propane occupies 274 L at 133 kPa and 316K. Find its volume at 98 kPa and 616K.

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