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
Alisiya [41]
2 years ago
11

PLEASE HELP SCIENCE SCIENCE HELP PLEASE PLEASE HELP SCIENCE SCIENCE HELP PLEASE PLEASE HELP SCIENCE SCIENCE HELP PLEASE PLEASE H

ELP SCIENCE SCIENCE HELP PLEASE PLEASE HELP SCIENCE SCIENCE HELP PLEASE PLEASE HELP SCIENCE SCIENCE HELP PLEASE PLEASE HELP SCIENCE SCIENCE HELP PLEASE PLEASE HELP SCIENCE SCIENCE HELP PLEASE PLEASE HELP SCIENCE SCIENCE HELP PLEASE PLEASE HELP SCIENCE SCIENCE HELP PLEASE PLEASE HELP SCIENCE

Chemistry
2 answers:
vesna_86 [32]2 years ago
8 0

Answer:

A. 1.67×10^-24

Explanation:

antiseptic1488 [7]2 years ago
3 0

Answer:

AAAAAAAAAAAAAAAAAAAAAAAAA

You might be interested in
Which component of solution is dissolving medium? a.solute b.solvent​
liubo4ka [24]

Answer:

Solvent

Explanation:

7 0
3 years ago
Will made a cup of hot tea and placed it on the tableA few minutes later, he picked up the cup and touched the warm table where
aliina [53]
D. Because convection is the transfer of heat and because the heat from the cup was transferred on to the table it has to be d :)
6 0
3 years ago
In order to do multiple trials of an experiment, _____. A. change your hypothesis B. do the experiment more than once C. revise
Arisa [49]

B. do the experiment more than once

Explanation:

To do a multiple trials of an experiment, it is best to do the experiment more than once.

Experimental trials are mere replication of the procedures in an experiment.

  • Most hypothesis on which experiments are based must be repeatable.
  • When experiments are repeated through several trials, their accuracy is increased.
  • Multiple trials clearly makes it easy to make meaningful deductions from an experimental process.

Learn more:

Experiment brainly.com/question/5096428

#learnwithBrainly

8 0
3 years ago
Which of the following is a product when Na2O and H2O react together? (2 points)
TiliK225 [7]
The correct answer is NaOH
5 0
3 years ago
Read 2 more answers
Calculate the percentage yield for the reaction represented by the equation CH4 + 2O2 ? 2H2O + CO2 when 1000 g of CH2 react with
makvit [3.9K]

Answer:

83.64%.

Explanation:

∵ The percent yield = (actual yield/theoretical yield)*100.

actual yield of CO₂ = 2300 g.

  • We need to find the theoretical yield of CO₂:

For the reaction:

<em>CH₄ + 2O₂ → 2H₂O + CO₂,</em>

1.0 mol of CH₄ react with 2 mol of O₂ to produce 2 mol of H₂O and 1.0 mol of CO₂.

  • Firstly, we need to calculate the no. of moles of 1000 g of CH₄ using the relation:

<em>no. of moles of CH₄ = mass/molar mass</em> = (1000 g)/(16.0 g/mol) = <em>62.5 mol.</em>

<u><em>Using cross-multiplication:</em></u>

1.0 mol of CH₄ produces → 1.0 mol of CO₂, from stichiometry.

∴ 62.5 mol of CH₄ produces → 62.5 mol of CO₂.

  • We can calculate the theoretical yield of carbon dioxide gas using the relation:

∴ The theoretical yield of CO₂ gas = n*molar mass = (62.5 mol)(44.0 g/mol) = 2750 g.

<em>∵ The percent yield = (actual yield/theoretical yield)*100.</em>

actual yield = 2300 g, theoretical yield = 2750 g.

<em>∴ the percent yield</em> = (2300 g/2750 g)*100 = <em>83.64%.</em>

5 0
3 years ago
Other questions:
  • A bus traveled south west for 422 kilometers. The entire trip took 3 hours. Calculate the velocity.
    8·1 answer
  • An element with an electronegativity of 0.9 bonds with an element with an electronegativity of 3.1.. Which phase best describes
    6·1 answer
  • Is a bag of different colored jelly beans a solution or a mixture
    11·2 answers
  • The resistance of a wire is not dependent on
    5·2 answers
  • How many moles of HNO3 will be produced 3 NO2+H2O=2HNO3+ NO
    11·1 answer
  • Okay so I'm a little confused on how this works so I would really appreciate someone helping me figure this out before my big te
    11·1 answer
  • Both pyrrole and pyridine are aromatic compounds, and undergo electrophilic aromatic substitution (EAS). Using a resonance argum
    11·1 answer
  • Which of the following elements is most metallic?
    8·1 answer
  • Convert 236 mg MgP207 to moles. Use three significant figures in your answer.​
    6·1 answer
  • Pls help me.<br>.<br>.<br>click the pic​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!