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4 years ago

In bullet points: explain the difference between thermal energy, heat and temperature.

Chemistry

1 answer:

sergeinik [125]4 years ago

3 0

Thermal Energy- is the energy that comes from heat. This heat is generated by the movement of tiny particles within an object. The faster these particles move, the more heat is generated.

Heat-energy is the result of the movement of tiny particles called atoms, molecules or ions in solids, liquids and gases. Heat energy can be transferred from one object to another. The transfer or flow due to the difference in temperature between the two objects.

Temperature- is a measure of how hot or cold something is; specifically, a measure of the average kinetic energy of the particles in an object, which is a type of energy associated with motion.

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If you change your workout from a

Westkost [7]

Answer:

HIIT workouts are anaerobic, and cardiovascular endurance workouts are usually aerobic, depending on how much you work out. If you changed speed and switched to a different workout immediately after what you did before, your heart rate would increase, and you would experience pain on the side of your abdominal. It can be because your body isn’t used to the change in speed and endurance.

6 0

3 years ago

What is the coefficient of silver in the final, balanced equation for this reaction?

vekshin1

This is an incomplete question, the complete question is attached below.

Answer : The coefficient of silver in the final, balanced equation for this reaction is, 3

Explanation :

Redox reaction or Oxidation-reduction reaction : It is defined as the reaction in which the oxidation and reduction reaction takes place simultaneously.

Oxidation reaction : It is defined as the reaction in which a substance looses its electrons. In this, oxidation state of an element increases. Or we can say that in oxidation, the loss of electrons takes place.

Reduction reaction : It is defined as the reaction in which a substance gains electrons. In this, oxidation state of an element decreases. Or we can say that in reduction, the gain of electrons takes place.

The given redox reaction is,

$Ag^+(aq)+Al(s)\rightarrow Ag(s)+Al^{3+}(aq)$

The oxidation-reduction half reaction will be :

Oxidation : $Al\rightarrow Al^{3+}+3e^-$

Reduction : $Ag^{+}+1e^-\rightarrow Ag$

In order to balance the electrons, we multiply the reduction reaction by 3 and then added both equation, we get the balanced redox reaction.

The balanced redox reaction will be,

$3Ag^+(aq)+Al(s)\rightarrow 3Ag(s)+Al^{3+}(aq)$

From the balanced redox reaction we conclude that, the coefficient of silver in the final balanced equation for this reaction is 3.

Hence, the correct option is 3.

8 0

3 years ago

Earnest Rutherford discovered that the nucleus is this

Nikitich [7]

Rutherford, through his gold-foil experiment, discovered that the nucleus is a small core of protons and neutrons making up most of the atom’s mass.

8 0

3 years ago

Which characteristics affect ocean water’s temperature? Check all that apply. depth location mass salinity waves

RideAnS [48]

Answer:

Depth and location affect ocean water’s temperature.

Explanation:

The main source of heat for the oceans is solar radiation. That is, water is basically heated by the radiation of the Sun, which transmits energy to the surface. The ocean absorbs this energy and stores it. Seawater has high caloric capacity. This means that more energy and more time is needed to change or increase the water temperature, compared to the air temperature. Similarly, once the ocean heats up, it takes a long time for the water to completely release or lose that heat.

The temperature decreases to greater depth, because the amount of solar radiation is reduced. On the contrary, it is greater where there is greater energy or heat content.

The closer a place is to the equator, the solar energy will affect more vertically and with more intensity on it, so the warmer the temperatures will be. The further that point of the equator is found, the solar energy will reach it with a smaller angle. And if the point is near the poles, the sun's rays will arrive at a very small angle. This causes the temperature of the water of the oceans to vary depending on the earth's latitude, being higher in areas close to the equator and the tropics, and colder the closer to the poles or the further away from the temperate zones.

3 0

3 years ago

Read 2 more answers

What mass percent solution will result from dissolving 0.126 moles of AgNO3 in 475 g. of water

Kruka [31]

Answer:

The answer to your question is: 4.5 %

Explanation:

0.126 moles of AgNO3

mass percent = ?

mass of water = 475 g

Formula

weight percent = weight of solute / weight of solution x 100

Weight of solute

MW AgNO3 = 108 + 14 + (16 x 3)

= 108 + 14 + 48

= 170 g

170 g of AgNO3 ------------------- 1 mol

x --------------------- 0.126 moles

x = (0.126 x 170) / 1 = 21.42 g of AgNO3

Weight percent = 21.42/475 x 100

= 4.5 %

7 0

3 years ago