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Anna11 [10]
4 years ago
7

How far can a cough travel?

Chemistry
1 answer:
jolli1 [7]4 years ago
6 0

Traveling upwards of 200 mph or 320 km/h, and accelerating in a matter of seconds, germs from a cough or sneeze can travel a great distance very quickly.

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What type of energy does water gain as it sits in the sun?
Studentka2010 [4]

Answer:

heat energy

Explanation:

water in the sun begins to get hot

8 0
4 years ago
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Convert to standard notation.<br> 9.3 x 10^-5
ziro4ka [17]

Answer:

9.3 x 10^ -5 in standard notation is 0.000093

Explanation:

Since 10 is raised to a -5, this means that there should be 5 zeros before the non-zero digits

8 0
3 years ago
What steps would you take in a lab to prepare 1000 mL of a 2 M NaCl solution
amm1812

Answer:

The answer to your question is below

Explanation:

Data

Volume = 1000 ml

Concentration = 2M

molecule = NaCl

Process

1.- Calculate the number of moles of NaCl

Molarity = moles/Volume

-Solve for volume

moles = Molarity x Volume (liters)

-Substitution

moles = 2 x 1

-Result

moles = 2

2.- Determine the molar mass of NaCl

NaCl = 23 + 35.5 = 58.5 g

3.- Calculate the mass of NaCl to prepare the solution

               58.5 g -----------------  1mol

                   x      -----------------  2 moles

                       x = (2 x 58.5) / 1

                       x = 117g

4.- Weight 117 g of NaCl, place them in a volumetric flask (1 l), and add enough water to prepare the solution.

7 0
4 years ago
Photosynthesis is what?
tigry1 [53]

Answer:

conversion of sunlight to cloraphil

Explanation:

plants absorb sun and convert it to energy

5 0
3 years ago
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Due to apparent brightness, on which planets of the ones listed below would I have to be standing on to observe the smallest app
Burka [1]

Answer:

Neptune to be precise

Explanation:

cause it is the last planet in our solar system

8 0
3 years ago
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