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OleMash [197]
3 years ago
9

Need help !!!!! ASAP

Chemistry
1 answer:
Galina-37 [17]3 years ago
8 0

Answer:

Barometer.

Explanation:

  • A barometer is a scientific instrument used to measure air pressure. Pressure tendency can forecast short term changes in the weather. Many measurements of air pressure are used within surface weather analysis to help find surface troughs, high pressure systems and frontal boundaries.
  • There are many types of barometers: water-based barometers, mercury barometers, vacuum pump oil barometer, and aneroid barometers.
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The reaction equation:
2Li + O → Li₂O

Molar ratio of Li to Li₂O is:
2 : 1
So if 3.03 moles of Li are present:
2/1 = 3.03 / x
x = 1.515 moles of Li₂O will be produced.
7 0
3 years ago
Na sua época quais foram as condições experimentais que Lavoisier utilizou em suas experiências ?
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Answer:

What are u saying

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3 years ago
In Mendelian genetics, when a tall plant is crossed with a short plant, the offspring will be:
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Some offspring may be tall, some may be short, and some may be medium medium sized.
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You need to make an aqueous solution of 0.182 M aluminum sulfate for an experiment in lab, using a 250 mL volumetric flask. How
Ksju [112]

Answer:

Hence, 15.99 g of solid Aluminum Sulfate should be added in 250 mL of Volumetric flask.

Explanation:

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The molar mass of Aluminum Sulfate = 342.15 g/mol  

Using the molarity formula:-  

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Number of moles = Given weight/ molar mass  

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0.187 M = (Given weight/342.15 g/mol)/0.250 L  

Given weight = 15.99 g  

8 0
3 years ago
Question 3 (1 point)
irina1246 [14]

false

Explanation:

i took the test

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