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Ber [7]
4 years ago
15

What is chemical change also referred to

Chemistry
1 answer:
Diano4ka-milaya [45]4 years ago
6 0
A chemical change is also referred to as a chemical reaction.
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Which is the following is true about the properties of the mantle?
nadya68 [22]

Answer:

it's the 2 I'm pretty sure

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3 years ago
Define cell differentiation in your own words
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Cellular differentiation<span> is the normal process by which a </span>cell<span> becomes increasingly specialized in form and function. The classic </span>example<span> is the process by which a zygote develops from a single </span>cell<span> into a multicellular embryo that further develops into a more complex fetus.

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Under what condition is phase rule applied​
Pavel [41]

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Under the equilibrium condition

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according to the phase rule given by Willard Gibbs, under the condition where the equilibrium between the number of phases is not affected by the gravity, electricity magnetic force or by surface action and the system is under constant temperature, pressure and concentration then the degrees of freedom(F) is proportional to the concerntration (C) and the Phases(P) at equilibrium condition.  

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3 years ago
What is the pressure, in mm Hg, of 2.50 moles of an ideal gas if it has a volume of 50.0 liters when the temperature is 27.0° C?
svetlana [45]
Use the ideal gas law:
<em>PV=nRT
</em>p = pressure
v = volume
n = number of moles of sample
R = ideal gas constant = ~0.08206 (l*atm)/(K*mole)
T = Temp in Kelvin

Now we substitute while simultaneously solving for P(pressure)
P = (nRT)/V
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P = Now it's your turn.
8 0
4 years ago
Jack is playing with a Newton's cradle. As he lifts one ball to position A and drops it, it impacts the other balls at position
svetlana [45]

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Newton's Cradle is a neat way to demonstrate the principle of the CONSERVATION OF MOMENTUM.

What happens here is when the ball on one end of the cradle is swung and it hits the other balls that are motionless, or stationary, the momentum of the swinging ball is transferred to the next ball upon impact.

Momentum is not lost in this action, what happens when it hits the next ball, the momentum is transferred to the next one, and then the next, and the the next, till it reaches the last ball on the other end. Since nothing is next to the last ball, it pushes the ball upwards, which will swing down and repeat the process going the other way.

This also demonstrates the CONSERVATION OF ENERGY. As you will see, the energy continues to move through the other balls, passing it from one ball to the other, which keeps this constantly moving.

8 0
3 years ago
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