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Tema [17]
2 years ago
9

The weights of all elements are always compared to oxygen. True False

Chemistry
2 answers:
kozerog [31]2 years ago
8 0

Answer:

false

Explanation:

I'm pretty sure it's compared to carbon

konstantin123 [22]2 years ago
6 0
False proble I think it is false
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Be sure to answer all parts. Determine the electron-group arrangement, molecular shape, and ideal bond angle for the following m
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Answer:

trigonal planar

Explanation:

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There are three regions of electron density in the molecule. This corresponds to a trigonal planar geometry. This means that the three oxygen atoms are arranged at the corners of a triangle.  The bond angle is 120 degrees.

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Measuring Volume
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Seems right, but if it’s just asking for one i would pick B
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2 years ago
1) How many moles are in 4.0x10^24 atoms?
-Dominant- [34]

Answer:

<h2>6.64 moles</h2>

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

n =  \frac{N}{L} \\

where n is the number of moles

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L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

n =  \frac{4 \times  {10}^{24} }{6.02 \times  {10}^{23} }   \\  = 6.644518...

We have the final answer as

<h3>6.64 moles</h3>

Hope this helps you

3 0
3 years ago
The reason an increase in substrate concentration does not increase the reaction rate indefinitely is because
scoundrel [369]

Answer:

Increasing substrate concentration also increases the rate of reaction to a certain point. Once all of the enzymes have bound, any substrate increase will have no effect on the rate of reaction, as the available enzymes will be saturated and working at their maximum rate.

3 0
2 years ago
What did the early atomic theory
Virty [35]

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Explanation:

The early theory says that atom Is the smallest indivisible particle. Which was later proven to contain electron neutron and proton

7 0
3 years ago
Read 2 more answers
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