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4 years ago

SOMEONE PLS HELP I'LL MARK BRAINLIEST

Chemistry

1 answer:

bogdanovich [222]4 years ago

8 0

Answer:

Look in explanation

Explanation:

1. Litmus Paper (Red/Blue Litmus Paper)

2. Urine or Milk

3. Citric Acid

4. Water/ Human blood

5. Solution

6. Sodium Hyrdoxide

7. Drizzle, Rain, Sleet, Snow

8. Stomach Acid

9. Indicators

10. Neutralization

11. Baking Soda

12. Water

13. H+

14. opposites to acids

15. Ph Scale

16. Hydrogen Ions

17. Sea Water

18. Water

19. Aqueous

20. Potential of Hydrogen

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devlian [24]

Answer:

The final temperature of both substances at thermal equilibrium is 17.3°C

Explanation:

To calculate the final temperature of both substances at thermal equilibrium -:

First , we calculate the heat of A1 cube as follows -

q= mSΔT

(where q = heat of the cube , m = mass of cube , S= specific heat of cube {0.902j/g°C}, T = Temperature )

Putting the values given in the question ,

$q= 32.5g\times0.902\j/g$ ° $C$ $\times(T_f-45.8$ ° $C)$

$29.315\times(T_f-45.8)J$

Now , calculate the heat of water -

q=mSΔT

Putting values from the question ,

$q=105.3g\times4.18j/g$ ° $C$ $\times (T_f-15.4$ ° $C)$

= $440.154\times(T_f-15.4)J$

Now ,

Heat lost by water A1= Heat gained by water [negative sign about heat lost]

$-29.315\times(T_f-45.8)J$ $=440.154\times(T_f-15.4)J$

$\frac{-(T_f-45.8)J}{T_f-15.4)J} =\frac{440.154}{29.315}=15.0$

$-T_f+45.8$ ° $C=15T_f-231.2$ ° $C$

$(45.8+231.2)$ ° $C$ = $16T_f$

$16T_f=277.03$ ° $C$

$T_f=\frac{277.03}{16}$ = 17.3°C

Therefore , the final temperature of both substances at thermal equilibrium is 17.3°C

3 0

3 years ago

Gimmie a right answer dont Guess plz

Dafna1 [17]

Answer:

maybe 1355 +5765 900/099

8 0

3 years ago

No. Of particles in H2SO4 in which 8grams oxygen is present????

steposvetlana [31]

Answer:

Explanation:

Its somewhat hard to comprehend the question, but if the way I read it was right, its 7.

6 0

3 years ago

How would the world be different if people were not aware of radioactive decay

allsm [11]

Answer:

everyone would die

Explanation:

if we did not know about it we would not do anything about it

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3 years ago

Where do glaciers come from

marusya05 [52]

Answer:GLACIERS ARE MADE UP OF FALLEN SNOW OVER MILLION YEARS, IN MOST OF POLAR REGIONS IT TURNS TO ICE AND WILL FLOW DOWNWARDS AND OUTWARDS UNDER ITS OWN PRESSURE

AND THE LARGEST GLACIER IN THE WORLD IS 60 MILES WIDE AND AROUND 270 MILES LONG.

IT COVERS 10% OF EARTH'S TOTAL LAND

Explanation:

4 0

4 years ago