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topjm [15]
3 years ago
9

Heat is the movement of thermal energy from one place to another. true or false

Chemistry
2 answers:
kykrilka [37]3 years ago
8 0

Thermal energy that is transferred from one substance to another; moves from warmer to cooler objects. So True.

yuradex [85]3 years ago
6 0

Answer: The given statement is true.

Explanation:

When particles of a substance or object attain internal energy due to the kinetic energy of its particles then this energy is known as thermal energy.

So, when two objects of different temperature are kept in contact with each other then this thermal energy flows from hotter object to cooler object.

This is known as heat is flowing from hot object to cool object.

Hence, we can conclude that the statement heat is the movement of thermal energy from one place to another, is true.

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The properties of two elements are listed below. Which prediction is supported by the information in the table?
ANEK [815]
K will give up an electron more easily than Br.
3 0
3 years ago
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As you climb through the troposphere, the temperature:
Korolek [52]
As you climb it decreases 
4 0
3 years ago
A motor cyclist starts from rest and reaches a speed of 6m/s after travelling with uniform acceleration for 3s. What is his acce
choli [55]

Answer:

2m/s²

Explanation:

When an object starts or at its state of rest it has an Initial speed U = 0

Final speed = 6m/s

total time taken for the acceleration = 3s

Acceleration =?

Acceleration is the change in velocity (speed) with time

OR

Time rate of change of velocity

Acceleration = <u>Change in Speed(velocity)</u>

Time taken

Hence,

Acceleration = <u> </u><u> </u><u>V - </u><u>U</u><u> </u><u> </u>

t

a = <u>6</u><u> </u><u>-</u><u> </u><u>0</u>

3

a = <u>6</u><u> </u><u> </u>

3

a = 2m/s²

4 0
3 years ago
The element thallium is 70% thallium-205 and 30% thallium-203. Calculate its relative atomic mass to 1 decimal place.
xxMikexx [17]

Answer:

answer-

The relative atomic mass = 204.4

explanation:

Thallium -203 = 30%

Thallium -205 = 70%

Therefore ,

relative mass of thallium = (30×203 + 70×205)/100

relative mass of thallium = (20440)/100

relative mass of thallium = 204.40 amu

Thus,

relative atomic mass of thalium =204.4 ( to 1 decimal place)

6 0
3 years ago
when methane reacts with oxygen, the products are carbon dioxide and water. How many grams of carbon dilxide are formed if 30 g
Wittaler [7]

Answer:

CH4+2O2→CO2+2H2O

Moles of oxygen=3232=1

Moles of carbon dioxide=4422=0.5

Moles of water=1818=1

1 mole of methane reacts with 2 moles of oxygen to give 1 mole of CO2 and 2 moles of water so 0.5 mole of methane will be required which is equal to 0.5×16=8g.

Explanation:

8g

4 0
2 years ago
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