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2 years ago

Which energy conservation occurs when you start running

Chemistry

2 answers:

Setler [38]2 years ago

6 0

Answer:

Potential energy will converted into Kinetic energy.

Explanation:

Usually when we run we use energy provided by our body. And this energy is stored in our body in the form of a chemical energy. Chemical energy is an energy which releases on burning of a substance similar process takes place in our body by which we get energy.This chemical energy is the potential energy which was present in us when we were ready to run.

The moment we started running potential energy starts getting converted into kinetic energy which is the energy possessed by a body in a motion

mark brainliest :)

Lady_Fox [76]2 years ago

4 0

Answer:

Kinetic

Explanation:

Kinetic energy kicks in after potienal builds up energy

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If the same large amount of heat is added to a 250 g piece of aluminum and a 150 g piece of aluminum, what will happen? The 150

Inga [223]

Answer:

The 150 g Al will reach a higher temperature.

Explanation:

The amount of heat added to a substance (Q) can be calculated from the relation:

Q = m.c.ΔT.

where, Q is the amount of heat added,

m is the mass of the substance,

c is the specific heat of the substance,

ΔT is the temperature difference (final T - initial T).

Since, Q and c is constant, ΔT will depend only on the mass of the substance (m).

∵ ΔT is inversely proportional to the mass of the substance.

∴ The piece with the lowest mass (150.0 g) will reach a higher temperature than that of a higher mass (250.0 g).

So, the right choice is: The 150 g Al will reach a higher temperature.

3 0

2 years ago

3Co2 (aq) 6NO3(aq) 6Na (aq) 2PO43–(aq) → Co3(PO4)2(s) 6Na (aq) 6NO3(aq) Identify the net ionic equation for this reaction.

Burka [1]

Answer : The net ionic equation will be,

$3Co^{2+}(aq)+2PO_4^{3-}(aq)\rightarrow Co_3(PO_4)_2(s)$

Explanation :

In the net ionic equations, we are not include the spectator ions in the equations.

Spectator ions : The ions present on reactant and product side which do not participate in a reactions. The same ions present on both the sides.

The given balanced ionic equation will be,

$3Co^{2+}(aq)+6NO_3^-(aq)+6Na^+(aq)+2PO_4^{3-}(aq)\rightarrow Co_3(PO_4)_2(s)+6Na^+(aq)+6NO_3^-(aq)$

In this equation, $NO_3^-(aq)\text{ and }Na^+(aq)$ are the spectator ions.

By removing the spectator ions from the balanced ionic equation, we get the net ionic equation.

Thus, the net ionic equation will be,

$3Co^{2+}(aq)+2PO_4^{3-}(aq)\rightarrow Co_3(PO_4)_2(s)$

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3 years ago

a household’s voltage is 120 volts, what is the power rating of a light bulb with 0.5 amps of current flowing through it?

xenn [34]

Your answer should be 110 volts

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3 years ago

Please help!!!!! The question is in the answer..

elena-s [515]

Answer:-149.7

Explanation:

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3 years ago

A helium-filled balloon contains 125 mL of gas at a pressure of 0.974 atm. What volume will the gas occupy at standard pressure?

Jobisdone [24]

121.75 is really really really really really the right answer... For real

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3 years ago