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MrRa [10]
3 years ago
14

Isotopes of the same element have a different number of ______​

Chemistry
1 answer:
qaws [65]3 years ago
5 0

Answer:

atomic weight..................

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Calculate the mass of 2.00 X 1020 molecules of SO3.
MakcuM [25]

Answer:

0.027g

Explanation:

From Avogadro's hypothesis, 1mole of any substance contains 6.02x10^23 molecules.

From the above, it means that 1mole of SO3 also contains 6.02x10^23 molecules.

1mole of SO3 = 32 + (16x3) = 32 + 48 = 80g

If 1 mole (80g) of SO3 contains 6.02x10^23 molecules,

Then Xg of SO3 will contain 2x10^20 molecules i.e

Xg of SO3 = (80x2x10^20)/6.02x10^23 = 0.027g

8 0
3 years ago
How many atoms are in CaCl2​
MrRa [10]

There are three atoms in total! Hope this can help you out!

8 0
3 years ago
A hot metal plate at 150°C
Travka [436]
The air surrounding the hot plate would heat up through the process of convection
7 0
3 years ago
PLEASE HELP! NO LINKS!!
Marina CMI [18]

Answer:

let's look at the far left column of the periodic table. this pattern tells us that these elements are the noble gases. Noble gas is all conduct electricity and they are all odorless and colorless. The Roman numeral above this column means that there is one free electron (valence electron) in the outer shell, except for helium which has two. That's why it's a different color from the rest in the same column.

5 0
3 years ago
10 + 32 -6=any one?​
Kryger [21]

Answer:

Your answer will be 36

Explanation:

10+32=42

42-6=36

3 0
3 years ago
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