Chemistry Homework Help

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Molecular Models

Q. The chemical formula of a molecule contains the chemical symbols of each element with a subscript to the right of each that indicates how many atoms of that element are present. Although the chemical formula indicates the type and number of atoms included, the order that they are bonded in is not indicated. When a molecule is created in the simulation, click on the green box labeled 3D to view a model of the molecule. either Space Filling or Ball and Stick can be selected. Use the PhET simulation to build each molecule based on the chemical formula, then view in three dimensions to help determine the order that they are bonded. Match each of the given chemical formulas to the appropriate models. Drag the appropriate labels to their respective targets.

Solved • Feb 20, 2020

Molecular Models

Q. In the figure below, you see macroscopic and particulate views of the element bromine. a) Which are the macroscopic views, and which are the particulate views? (Select all that apply)

Solved • Jan 29, 2020

Molecular Models

Q. In the illustration, N is colored-coded as blue and O is color-coded as red. What kind of change is represented by this illustration? Is energy absorbed or released when this change occurs?

Solved • Jan 29, 2020

Molecular Models

Q. In the illustration, N is color-coded as blue and O is color-coded as red. What kind of change is represented by this illustration? Is energy absorbed or released when this change occurs?

Solved • Jan 29, 2020

Molecular Models

Q. Aluminum reacts with oxygen gas to produce aluminum oxide. 4 Al + 3 O2 2 Al2O3 Sketch 2 containers representing beakers. Draw 10 atoms of aluminum and 6 molecules of oxygen gas in the container

Solved • Mar 14, 2019