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CHM 131 Lecture Notes - Lecture 2: Molar Mass

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orchidrabbit950

26 Nov 2017

School

University of Rochester

Department

Course

Professor

Benjamin Hafensteiner

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Document Summary

Read & write notes on chps 1-2 (rush rhees?) H2o + atp adp + h2po4. + e thus even this bio equation releases e due to. Its how you get to 8 valence electrons is more important than getting 8 electrons. Diff neutrons = isotopes ; diff electrons = ions. Neg charge ion = anion ; pos charge ion = cation. Properties depend on nuclear charge along with other qualities. Alchemists attempted magic to change elements to other elements with very limited energy sources, doomed to fail. You can convert neutron+electron to electron, and protons can become beta particles to go back to neutrons. The base particles are very similar & related. Ch3oh (of mass x)+ o2 (of mass y) co2 + h2o (mass x+y) if it reacts. Completely, but many do not, or create different products than expected. Microwaving food flexes bonds in water molecules, causing vibrations and challenging the bonds but not breaking them.

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Related Questions

Predict the charge that an aluminum ion would have.

Terms in this set (26)

example of the law of multiple proportions

Two different compounds formed from carbon and oxygen have the following mass ratios:

1.33 g O: 1 g C and 2.66 g O: 1 g C.

2) Which of the following statements is FALSE according to Dalton's Atomic Theory?

A) Atoms combine in simple whole number ratios to form compounds.

B) All atoms of chlorine have identical properties that distinguish them from other elements.

C) One carbon atom will combine with one oxygen atom to form a molecule of carbon monoxide.

D) Atoms of sodium do not change into another element during chemical reaction with chlorine.

E) An atom of nitrogen can be broken down into smaller particles that will still have the unique properties of nitrogen.

The mass number is equal to

the sum of the number of protons and neutrons

a subatomic particle is

A neutral atom contains the same number of protons and electrons

true statement about isotopes

Some elements have 3 or more naturally occurring isotopes

Identify a cation

An atom that has lost an electron

What species is represented by the following information?

p+ = 12 n° = 14 e- = 10

What species is represented by the following information?

p+ = 47 n° = 62 e- = 46

What species is represented by the following information?

p+ = 17 n° = 18 e- = 18

Predict the charge that an aluminum ion would have

Predict the charge that a calcium ion would have

Predict the charge that an ion formed from sulfur would have