1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
valkas [14]
2 years ago
6

Chemistry practice ​

Chemistry
1 answer:
LekaFEV [45]2 years ago
8 0
C2P4 (2 carbons and 4 phosphorus)
You might be interested in
Water waves are surface waves. The energy of the waves moves
horrorfan [7]

Answer:

Explanation:

<em>Waves are actually energy passing through the water, causing it to move in a circular motion. ... This phenomenon is a result of the wave's orbital motion being disturbed by the seafloor.</em>

<em />

<em>The direction a wave propagates is perpendicular to the direction it oscillates for transverse waves. A wave does not move mass in the direction of propagation; it transfers energy.</em>

8 0
2 years ago
Read 2 more answers
In this experiment, you were asked to calculate your percent yield of alum assuming that you started with pure aluminum. Actuall
neonofarm [45]

Answer:

Percent yield of alum is 38.6%

Explanation:

Find attached calculations for detailed explanation.

3 0
3 years ago
When can polar bears take care of themselves
Viefleur [7K]
around the age of two they might start to kinda ''leave''(or venture) there parents

5 0
3 years ago
Complete combustion of 7.40 g of a hydrocarbon produced 22.4 g of CO2 and 11.5 g of H2O. What is the empirical formula for the h
cluponka [151]
<span>C2H5 First, you need to figure out the relative ratios of moles of carbon and hydrogen. You do this by first looking up the atomic weight of carbon, hydrogen, and oxygen. Then you use those atomic weights to calculate the molar masses of H2O and CO2. Carbon = 12.0107 Hydrogen = 1.00794 Oxygen = 15.999 Molar mass of H2O = 2 * 1.00794 + 15.999 = 18.01488 Molar mass of CO2 = 12.0107 + 2 * 15.999 = 44.0087 Now using the calculated molar masses, determine how many moles of each product was generated. You do this by dividing the given mass by the molar mass. moles H2O = 11.5 g / 18.01488 g/mole = 0.638361 moles moles CO2 = 22.4 g / 44.0087 g/mole = 0.50899 moles The number of moles of carbon is the same as the number of moles of CO2 since there's just 1 carbon atom per CO2 molecule. Since there's 2 hydrogen atoms per molecule of H2O, you need to multiply the number of moles of H2O by 2 to get the number of moles of hydrogen. moles C = 0.50899 moles H = 0.638361 * 2 = 1.276722 We can double check our math by multiplying the calculated number of moles of carbon and hydrogen by their respective atomic weights and see if we get the original mass of the hydrocarbon. total mass = 0.50899 * 12.0107 + 1.276722 * 1.00794 = 7.400185 7.400185 is more than close enough to 7.40 given rounding errors, so the double check worked. Now to find the empirical formula we need to find a ratio of small integers that comes close to the ratio of moles of carbon and hydrogen. 0.50899 / 1.276722 = 0.398669 0.398669 is extremely close to 4/10, so let's reduce that ratio by dividing both top and bottom by 2 giving 2/5. Since the number of moles of carbon was on top, that ratio implies that the empirical formula for this unknown hydrocarbon is C2H5</span>
3 0
3 years ago
The following is what type of reaction: 2Al(s) + 3CuCl2(aq) ---&gt; 2AlCl3(aq) + 3Cu(s)
Volgvan

Answer:

single replacment

Explanation:

7 0
3 years ago
Other questions:
  • Explain the changes that take place at the molecular level when a substance is superheated or supercooled ?
    13·1 answer
  • The answers to number 2-13
    5·1 answer
  • 23. A neutralization reaction between an acid and a base always produces
    10·2 answers
  • A solution of salt water is boiled. The water evaporates and solid salt remains. Which statement is true?
    13·2 answers
  • How do rivers become larger as they travel across land?
    8·1 answer
  • Which of the following is the end product of a natural<br> radioactive series?
    14·1 answer
  • Smh why do people always have to use fake profile pictures? Its not like anyone is gonna judge you it isnt facebook its a websit
    6·1 answer
  • Li(OH) --&gt; Li2O + H20
    8·1 answer
  • During an experiment, distilled water was placed in a sealed container and the container was heated gradually. Describe this sys
    11·1 answer
  • What is the chemical equation for <br><br> 3fe(s)+4h2o(l)→fe3o4(s)+4h2(g)
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!