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
Drupady [299]
3 years ago
7

If 4520 kj of heat is needed to boil a sample of water, what is the mass of water

Chemistry
1 answer:
Cerrena [4.2K]3 years ago
5 0

Answer:

1,085g of water

Explanation:

If we have the value 4520kj is because the question is related to Energy and heat capacity. In this case, the law and equation that we use is the following:

                                                  Q= m*C*Δt  where;

Q in the heat, in this case: 4520kj

m is the mas

Δt= is the difference between final-initial temperature (change of temperature), in this exercise we don´t have temperatura change.

In order to determine the mass, I will have the same equation but finding m

                                          m= Q/C*Δt    without   m=Q/C

So: m= 4,520J/4.18J/g°C

      m= 1,0813 g

You might be interested in
Why California and Nevada have so many faults?
gtnhenbr [62]

Answer:

They are due to past earthquakes

6 0
3 years ago
PLEASE HELP!!!The measurement of how fast an object moves over a certain amount of time.
ad-work [718]
1- <span>Acceleration
2- </span><span>Velocity
</span>3- <span>25 mph
4- </span><span>50 mph east
5- </span><span>Speed
6- 0
7- </span><span>It decreases
</span>
3 0
3 years ago
Read 2 more answers
How many electrons are in the highest occupied energy level of these atoms?
Yuliya22 [10]
Excuse me not giving an explanation; I haven't even learned chemistry before. I usually give explanations for math/english.

I think it would be for flourine: 7
aluminum: 8
can't help with the rest...
sorry!
8 0
3 years ago
Look back at your data and your regression equation. (Sample data is shown to the right, with X= pressure and Y=volume.) click a
laiz [17]
<span>Select the block of cells to be included in the scatter plot by clicking and dragging, then from the Insert ribbon under Chart drop down the Scatter or Bubble menu and select Scatter.  A chart will appear on the spreadsheet.
</span><span>
To set up a scatter plot in Excel, enter the pairs of data in two columns with each value of a pair on the same row.  By default, Excel considers the column on the left to contain the horizontal (X) values and the column on the right to contain the vertical (Y) values.

</span><span>If you click on the + sign at the upper right of the chart, a list of checkboxes will appear.  Check Axes, Axis Titles, and Trendline.  Uncheck everything else.  You should edit the Axis Titles to include the name of the factor and any units associated with it.  Double-click on the Axis numbers to bring up the Format Axis dialog, then click on the bar-graph icon to access Axis Options.  Set the bounds and units appropriately and set the tick marks to something sensible.</span><span>

</span>
5 0
3 years ago
What is the strongest evidence for hydrogen
Mumz [18]

Explanation:

4.hydrogen is able to accept or donate electrons,so it is the most versatile storm I the periodic chart

6 0
3 years ago
Other questions:
  • Which of the following is the correct name for the compound MgBr2? A) Magnesium bromate B) Magnesium bromide C) Magnesium dibrom
    9·1 answer
  • Why does the solid phase of water (ice) float in liquid water?
    11·1 answer
  • If an atom has 6 valence electrons, how many electrons does it need to gain to achieve a stable electron configuration?
    12·2 answers
  • Chemical reactions guided reading and study describing chemical reactions what are chemical equations ci 2.2
    15·1 answer
  • When does a total solar eclipse take place?
    6·1 answer
  • This is the chemical formula for carvone (the chemical that gives spearmint its flavor): An organic chemist has determined by me
    11·1 answer
  • Anyone who could help me would be great!!! Plss!!!
    12·1 answer
  • Give the symbol for an element that is:__________
    13·2 answers
  • A chemist measures the energy change
    9·1 answer
  • 2C2H2 + 502 = 4CO2 + 2H20<br>when 20000g of 2C2H2 + 5O2 = how much 4CO2?​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!