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sergeinik [125]
3 years ago
15

Which model shows a molecule of a substance that is made up of three elements ​

Chemistry
1 answer:
vovangra [49]3 years ago
4 0

Answer:

c or d

Explanation:

i tried a and it was wrong. its not B. and i cant see the rest. its the one that looks like a catipillar tho

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how many milliliters of 1.50 m hno3 contain enough nitric acid to dissolve an old copper penny with a mass of 3.94 g?
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Molar mass HNO₃ = 63.0 g/mol

number of moles = 3.94 / 63.0 => 0.0625 moles

Volume = moles / molarity

V = 0.0625 / 1.50

V = 0.04166 L x 1000 = 41.66 mL

hope this helps!

5 0
3 years ago
What are nanochemicals and what are there uses?
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6 0
3 years ago
HELP......Percussion instruments are musical instruments that make noise when they are hit with an object. Which of these are pe
valkas [14]

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Explanation:

4 0
4 years ago
Calculate the percent by mass of a solution of Ca(NO3)2 that has 22.63 g dissolved in 896.92 g of water.
never [62]

Hey there!

To calculate the percent by mass of the Ca(NO₃)₂ we need to find the total mass first by adding.

896.92 + 22.63 = 919.55

In total, the solution is 919.55 grams.

To find the percent of Ca(NO₃)₂ in the solution, divide the mass of Ca(NO₃)₂ by the total mass and multiply by 100.

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Explanation:

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3 years ago
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