Answer:
<u>The final temperature of both substances at thermal equilibrium is 17.3°C</u>
Explanation:
<u>To calculate the final temperature of both substances at thermal equilibrium -:</u>
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 ,
°
°

Now , calculate the heat of water -
q=mSΔT
Putting values from the question ,
°
°
=
Now ,
Heat lost by water A1= Heat gained by water [negative sign about heat lost]


°
°
°
=
°
= 17.3°C
<u>Therefore , the final temperature of both substances at thermal equilibrium is 17.3°C</u>
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Lol your in my science class. i believe its plutonium-239, but if someone else says I'm wrong listen to them. I'm not too sure.
Answer:
1.85 g of hydrogen gas will form!
Explanation:
1. Write the balanced equation.
Zn
+
2HCl
→
ZnCl
2
+
H
2
2. Calculate the moles of
Zn
.
Moles of Zn
=
30.0
g Zn
×
1 mol Zn
65.38
g Zn
=
0.4589 mol Zn
3. Calculate the moles of
H
2
.
Moles of H
2
=
0.4589
mol Zn
×
2 mol H
2
1
mol Zn
=
0.9177 mol H
2
4. Calculate the mass of
H
2
.
Mass of H
2
=
0.9177
mol H
2
×
2.016 g H
2
1
mol H
2
=
1.85 g H
2
Answer:
a. H20,because it experiences hydrogen bonding.
When a man travels from earth to space, the mass of the person, defined as the amount energy a matter has remains constant. However, when he moves to space, gravity decreases until such time that there is no gravity that acts on the person. Weight thus changes or decreases until the point of state called weightlessness.