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I am Lyosha [343]
3 years ago
7

Please help!

Chemistry
1 answer:
sleet_krkn [62]3 years ago
5 0

Answer:

One gram of glass will rise 20*C when 3.2 Calories of heat are applied

Ten grams of ice will require 5 Calories to raise its temperature 1*C.

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A student blows up a ballon and then places it in a very cold freezer the ballon shrunk why did it shrink
Rashid [163]
As temperature increases the speed of the molecules as well as the pressure also increases. Therefore the number collisions against the sides of the container (in this case the balloon) will increase because the pressure increased. When the temperature decreased when the balloon was put in a freezer the molecules slowed down, and the pressure decreased, so the number of collisions with the side of the balloon also decreased and the balloon shrunk. Hope that helps!
8 0
3 years ago
How do modern goldfish look different from their Prussian carp ancestors?
lbvjy [14]
I’m thinking 1, correct me if I’m wrong.
8 0
3 years ago
E. What is one way that your body knows if it is upside-down or not?
Firlakuza [10]

Answer:

You get some type of pressure that you start to feel in your muscles and joints from gravity and movement. How do they say it? Something called "seat-of-the-pants" (something like that). You get some type of pressure, and your body senses it, and it knows when you are upside-down or not, because if you're not, then you won't get any pressure in your muscle.

Hope this helped!

Have a supercalifragilisticexpialidocious day!

6 0
3 years ago
Importance achievements of chemistry
zzz [600]

Answer:

  1. Chemistry is essential for meeting our basic needs of food, clothing, shelter, health, energy and clear air, water and soil
  2. Chemistry helps you to understand the world around you
  3. Chemistry is a heart of cooking
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6 0
2 years ago
Write a balanced net ionic equation for the following reaction. Explain how you arrived at this answer. What did you cancel out?
yaroslaw [1]

 The net ionic equation  is


Ag⁺(aq)  +Cl⁻(aq) →  AgCl(s)


Explanation


AgNO₃ (aq)  + KCl (aq)→ AgCl(s) +KNO₃(aq)



from above  molecular equation break  all  soluble electrolyte  into ions


Ag⁺(aq) +NO₃⁻ (aq) + K⁺(aq) +Cl⁻(aq) →   AgCl (s) + K⁺(aq) + No₃⁻(aq)



cancel the spectator  ions  in both side  of  equation =K⁺  and NO₃⁻  ions



The net  ionic equation is therefore


= Ag⁺(aq)  + Cl⁻(aq) →    AgCl(s)

8 0
4 years ago
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