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mr_godi [17]
4 years ago
14

A parallelogram is shown below:

Chemistry
2 answers:
Bingel [31]4 years ago
8 0
Part A: area is 6 ft^2


the area of a parallelogram is equal to :

base x height
8 \times  \frac{3}{4}  =  \frac{24}{4}  = 6

Part B:


if you draw a diagonal for the parallelogram, then you have two congruent triangles

and the area of each of the triangles is equal to half of the area of the parallelogram.
6 \div 2 = 3






good luck
kaheart [24]4 years ago
3 0
B) you can make a diagnol DB and separate the parallelogram into triangle DBA and triangle DBC.

The area of each of the triangle would be
1/2 * 8 *3/4 =
1/2 * 2 *3 =
3 feet or foot ^2

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4.2 g of lithium (Li) reacts with 2.8 g of nitrogen (N2). Find the simplest molar ratio in which lithium reacts with nitrogen.
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The simplest molar ratio in which lithium reacts with nitrogen is 6 moles of lithium to 1 mol of nitrogen.

What is molar ratio?

A molar ratio examines the ratio that exist between two chemical compounds showing the amounts in moles of the compounds involved in a chemical reaction.

Molar ratio = amount of a constituent in moles ÷ total amount of all constituents in a mixture in moles

Given:

Mass of lithium (Li) = 4.2 g

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Total amount of mass = 7g

Moles = molecular weight  ÷  mass of water

Moles of lithium (Li) = 4.2 ÷ 7 = 0.60 mol

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6 Li + N₂

The balanced equation between lithium and nitrogen, to form lithium nitride = 6 Li + N₂ → 2 Li₃N₆L i + N₂ → 2Li₃N

In summary, the simplest molar ratio in which lithium reacts with nitrogen is 6:1

Learn more about molar ratio here: brainly.com/question/14677248

#SPJ1

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beks73 [17]

Answer:

c

Explanation:

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