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enot [183]
2 years ago
14

On the reaction side there are two or more reactants, and on the product side there is only one product. The reaction type is __

_______________.
a. combination
b. decomposition
c. single Replacement
d. combustion
Chemistry
1 answer:
Grace [21]2 years ago
3 0
It is a.combination that is the correct answer i think

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Why the mixture should not be strongly heated during sublimation ​
daser333 [38]

Answer:

because strong heated makes temperatures and pressures reach the substance's triple point in its phase diagram, So the substance can be in a liquid case , and that is against the sublimation process meaning

which define as the transition of a matter or a substance  from the solid phase to the gas phase directly, without passing through the intermediate liquid phase

sublimation process happens by absorbing of heat which makes molecules overcome attractive force between each other and changing to gas phase

but in the previous case it will pass through the liquid phase so it will not be sublimation process any more

6 0
3 years ago
Neon is an inert gas and has the atomic number of 10. Which of the following correctly depicts its electron configuration? 1s22d
weeeeeb [17]
I think the answer is 1s²2s²2p⁶.  Since neon has an atomic number of 10, we know that it needs to have 10 electrons and since it is in the second row it cannot have any d electrons which makes the first option incorrect.  The second option is incorrect because the 2s⁴ can't exist since s orbitals can only hold 2 electrons.  The fourth option cannot be right because it again neon cannot have d electrons due to it being in the second row.

I hope this helps.  Let me know if anything is unclear.
7 0
3 years ago
A swimmer is moving at a speed of 2.0 meters/second. How long will it take for the swimmer to go 100 meters?
gayaneshka [121]
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3 0
3 years ago
Is everything that we can see in the universe matter
Drupady [299]

Answer:

no

Explanation:

8 0
3 years ago
Read 2 more answers
78.9 + 890.43 - 21 = 9.5 x 10^2
maria [59]

948 or 9.48 x 10^2

There are two sets of rules for significant figures

• One set for addition and subtraction

• Another set for multiplication and division

You used the set for multiplication and division.

This problem involves addition and subtraction, and the rule is

The number of places after the decimal point in the answer must be <em>no greater than the number of decimal places in every term</em> in the sum.

Thus, we have

78.9

+890.43

-21.

= 948.33

The "21" term has the fewest digits after the decimal point (none), so the answer must have no digits after the decimal point.

To the correct answer is 948 = 9.48 x 10^2. It has three significant figures.

8 0
3 years ago
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