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3 years ago

4. How many Carbon atoms are present in 1.00 mole of methane, CH,?

Chemistry

1 answer:

Elodia [21]3 years ago

7 0

Answer: 6.02*10^23

Explanation:

1 mole of anything is 6.02*10^23

1 atom C per CH4

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The center of an atom is called the

Gekata [30.6K]

The center of an atom is called the nucleus where the protons and neutrons are. Hope it helps!!

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3 years ago

In this experiment, you need to examine the idea of thermal energy transfer. Using a controlled experiment, what might a good qu

Xelga [282]

Answer:

Sample Response: How do mass and the type of material affect thermal energy transfer?

What did you include in your question? Check all that apply.

examines the effect of mass

examines the effect of different materials

contains at least two variables

Explanation:

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2 years ago

9. t An element that has only 5 electrons in the 4p orbital is located in which group? A. O Group 1 B. Group 17 C. O Group 2 D.

umka2103 [35]

Answer:

B. Group 17

Explanation:

The element is Bromine. Its electron configuration is:

1s2 2s2p6 3s2p6d10 4s2p5

You can see that its last orbital is 4p^5 for 5 electrons in the 4p orbital.

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2 years ago

A. 6750 J B. 387 J C. 1935 J D. 3.50 J

aliya0001 [1]

Answer:

It was answer

A)1935J

Explanation:

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2 years ago

Read 2 more answers

In a laboratory preparation room one may find a reagent bottle containing 5.0 L of 12 M NaOH. Write a set of instructions for th

kari74 [83]

Answer: The volume taken from the reagent bottle must be 72.91 mL

Explanation:

To calculate the volume of concentrated solution, we use the equation:

$M_1V_1=M_2V_2$

where,

$M_1\text{ and }V_1$ are the molarity and volume of the concentrated solution which is the reagent bottle.

$M_2\text{ and }V_2$ are the molarity and volume of diluted solution which is the solution to be prepared.

We are given:

$M_1=12M\\V_1=?mL\\M_2=3.5M\\V_2=250mL$

Putting values in above equation, we get:

$12\times V_1=3.5\times 250\\\\V_1=72.91mL$

Hence, the volume taken from the reagent bottle must be 72.91 mL

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3 years ago