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
Burka [1]
3 years ago
10

HELLLPPPPP

Chemistry
2 answers:
Zepler [3.9K]3 years ago
6 0

Answer:

<h3><u><em>its A.</em></u></h3>

Explanation:

edge food and nutrition!!

zhannawk [14.2K]3 years ago
4 0

Answer:

whats the question

i dont get it where is the questionnnn

Explanation:

You might be interested in
A drop of water with a mass of 0.48 g is vaporized at 100 ∘C and condenses on the surface of a 55- g block of aluminum that is i
bagirrra123 [75]

The final temperature in Celsius of the metal block is 49°C.

<h3>How to find the number of moles ?</h3>

Moles water = \frac{\text{Given mass}}{\text{Molar Mass}}

                     = \frac{0.48\ g}{18\ \text{g/mol}}

                     = 0.0266 moles  

                   

Heat lost by water = 0.0266 mol x 44.0 kJ/mol

                                = 1.17 kJ

                                = 1170 J           [1 kJ = 1000 J]

Heat lost = Heat gained

Heat gained by aluminum = 1170 J  

1170 = 55 x 0.903 (T - 25) = 49.7 T - 1242  

1170 + 1242 = 49.7 T  

T = 48.5°C (49°C at two significant figures)

Thus from the above conclusion we can say that The final temperature in Celsius of the metal block is 49°C.

Learn more about the Moles here: brainly.com/question/15356425

#SPJ1

7 0
1 year ago
Sediment layers stop lateral spreading when:
Xelga [282]

Answer:

Peepee poopoo!

Explanation:

7 0
3 years ago
How many grams of O are in 675 g of Na2O
PIT_PIT [208]
I think it is .00005815
6 0
3 years ago
Carbon-14 has a half-life of 5,730 years. How long will it take for 112. 5 g of a 120. 0-g sample to decay radioactively? 5,730
vichka [17]

The time taken by Carbon-14 to decay radioactively from 120g to 112.5g is 22,920 years.

<h3>How do we calculate the total time of decay?</h3>

Time required for the whole radioactive decay of any substance will be calculated by using the below link:

T = (n)(t), where

  • t = half life time = 5730 years
  • n = number of half life required for the decay

Initial mass of Carbon-14 = 120g

Final mass of Carbon-14 = 112.5g

Left mass = 120 - 112 = 7.5g

Number of required half life for this will be:

  • 1: 120 → 60
  • 2: 60 → 30
  • 3: 30 → 15
  • 4: 15 → 7.5

4 half lives are required, now on putting values we get

T = (4)(5730) = 22,920 years

Hence required time for the decay is 22,920 years.

To know more about radioactive decay, visit the below link:

brainly.com/question/24115447

#SPJ1

3 0
2 years ago
Reaction is
-Dominant- [34]
According  to the task, you  are proveded with patial pressure of CO2 and graphite, and here is complete solution for the task :
At first you have to find n1 =moles of CO2 and n2 which are moles of C 
<span>The you go :
</span>CO2(g) + C(s) \ \textless \ =\ \textgreater \  2CO(g)

n1 n2 0
-x -x +2x
n1-x n2-x 2x Kp=P^2 (CO)/Pco2
After that you have to use the formula PV=nRT
 Kp=(2x)^2/n1-x
Then you have to solve x, and for that you have to use <span>RT/V
And to find total values:</span>P(total)=n(total)*R*T/V
I am absolutely sure that this would be helpful for you.
7 0
3 years ago
Other questions:
  • Based on the information in the table, which elements are most likely in the same periods of the periodic table?
    7·2 answers
  • Plz help me guys for 20 points 5th GRADE SCEINCE
    14·2 answers
  • Which of the following is a correct formula unit? PbCl AlP Li3Al ClO
    14·2 answers
  • he carbon-14 isotope is important because it allows scientists to determine the ___________ of an organic sample. A) age B) dens
    9·1 answer
  • Iron(II) chloride and sodium carbonate react to make iron(II) carbonate and sodium chloride: FeCl2(aq) + Na2CO3(s) → FeCO3(s) +
    15·2 answers
  • Fill in the blank
    11·1 answer
  • using the balanced equation below how many grams of lead(||) sulfate would be produced from the complete reaction of 23.6 g lead
    5·1 answer
  • Of all chlorine atoms, 75.771% are chlorine-35. Chlorine-35 atoms have
    13·2 answers
  • Can u pls help me with this question ​
    6·1 answer
  • What happens to the water particles in a wave?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!