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vichka [17]
2 years ago
9

All molecules have the same kinetic energy and hence the same speed. O True O False

Chemistry
1 answer:
topjm [15]2 years ago
4 0
False...their speed differs
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Can someone do my homework pls!
Elza [17]

Answer:

Hi, a cheerful teen willing to help,

wishing you a splendiferous day ahead...

Explanation:

1ai. The most dense is Tungsten.

1aii. The least dense is Sodium.

1aiii. The strongest is Tungsten.

1b. All metals conduct electricity.

They are all magnetic except magnetic.

and all solid at room temperature except mercury.

1c. Mercury is a liquid at room temperature.

1d. Tungsten is used as filament for light bulbs due to its high melting point and it doesn't oxidize, this the filament won't melt.

1e. The lump of gold will sink because it is more dense than mercury.

7 0
3 years ago
Read 2 more answers
Look at the table. Which of these three substances is not an alloy?
Gemiola [76]

Answer:

B is the correct option.

5 0
2 years ago
Read 2 more answers
The electrical wires in your home use what type of circuits?
Helga [31]
The house wiring should be done parallel because, in parallel connection there will be more advantages than a series connection.

Let a house is wired in series and it contains a fan, tube light, TV, refrigerator. All the devices are connected in series. Now, due to some disturbance the fan speed working or it burned. Then since the connection was a series, due to one appliance failure causes the whole circuit to fail. If it is burned that means it making an open circiut. Then there will be no current flow in the circuit.

Now if it was a parallel connection as we know already, the parallel connection is nothing but individual appliances connected to the same line by tappings. That means there's no dependency of one appliance on another. So if an appliance fail or burns it doesn't effects the remaining appliances. And there will be uninterrupted supply to the healthy appliances can be achieved.

That’s why we use parallel for house wiring
7 0
3 years ago
Read 2 more answers
What is the mass of 3.0 x x times 10^23 atoms of neon?
Sladkaya [172]

Answer:

10.09 grams

Explanation:

First you need to know the number of moles you are dealing with.

If you know that each mole has 6.022x10²³ of something (in this case of atoms), you can divide 3x10²³ atoms of neons by 6.022x10²³ to obtain the number of moles.

You have 0.5 moles of Neon, so then by the periodic table, you see that the molar mass of neon is 20.18g/mol, so by each mole you have 20.18 grams of neon. Multiply 20.18 grams by 0.5 moles and you got 10.09 grams of Neon

7 0
2 years ago
Why is pseudo science not considered real science
swat32

Pseudo-science is not considered real science because it is not testable.

Answer:  Option A

<u>Explanation:</u>

Pseudoscience primarily includes beliefs, theories or practices that are somehow incompatible with the scientific facts. The pseudoscience can’t be tested on the basis of science.

Let’s take an example of astrology. Some people believe that stars and other celestial bodies draw a significant impact on their life i.e. Good or bad thing it's just because their stars are working either in a positive or negative manner.

But, this belief doesn’t have any well-proved or authentic background over which the whole concept can rely on. Hence, pseudoscience is not taken as a real science as a lack of strong proves.

8 0
3 years ago
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