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mario62 [17]
3 years ago
14

Where can I find free piano sheet music for the elements song by Tom Lehrer?

Chemistry
1 answer:
zimovet [89]3 years ago
8 0
Just search it up on the internet:)
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A scientist adds a liquid to a base. As it is added the substance turns reddish pink the liquid is most likely?
Natalka [10]

Answer:

what we need to answer here?

6 0
3 years ago
A 1.24g sample of a hydrocarbon, when completely burned in an excess of O2 yields 4.04g Co2 and 1.24g H20. Draw plausible struct
arsen [322]

Answer:

Plausible structure has been given below

Explanation:

  • Molar mass of CO_{2} is 44 g/mol and molar mass of H_{2}O is 18 g/mol
  • Number of mole = (mass/molar mass)

4.04 g of CO_{2} = \frac{4.04}{44}moles CO_{2} = 0.0918 moles of CO_{2}

1 mol of CO_{2} contains 1 mol of C atom

So, 0.0918 moles of CO_{2} contains 0.0918 moles of C atom

1.24 g of H_{2}O = \frac{1.24}{18}moles H_{2}O = 0.0689 moles of H_{2}O

1 mol of H_{2}O  contain 2 moles of H atom

So, 0.0689 moles of H_{2}O contain (2\times 0.0689)moles of H_{2}O or 0.138 moles of H_{2}O

Moles of C : moles of H = 0.0918 : 0.138 = 2 : 3

Empirical formula of hydrocarbon is C_{2}H_{3}

So, molecular formula of one of it's analog is C_{4}H_{6}

Plausible structure of C_{4}H_{6} has been given below.

4 0
3 years ago
10 points
nasty-shy [4]

Answer:

Eventually, these individual laws were combined into a single equation—the ideal gas ... We find that temperature and pressure are linearly related, and if the ... then P and T are directly proportional (again, when volume and moles of gas are ... of the variables, and they are more difficult to use in fitting theoretical equations ...

Explanation:

3 0
3 years ago
if theres no coefficient on a element symbol, is the power automatically 1 like it would be if there was no subscript?
Ivenika [448]
Yup go this website for more information http://dwb.unl.edu/calculators/activities/BalEqn.html
5 0
3 years ago
Balance the equation below and use it to answer this question:
Svet_ta [14]

Answer:

2H2 + O2 -----> 2H2O

Not sure about the second question though.

8 0
3 years ago
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