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viktelen [127]
2 years ago
5

Question 5 (5 points)

Chemistry
1 answer:
KIM [24]2 years ago
5 0
A) LITHIUM is the least reactive alkali metal

B) FRANCIUM is the most reactive alkali metal

C) BERYLLIUM is the least reactive alkaline earth metal

D) RADIUM is the most reactive alkaline earth metal

E) TENNESSINE is the most reactive halogen


For E it might also be Astatine because Tennessine is a fairly new
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Which statement is true regarding methane and ammonia?
sukhopar [10]
The options for given question are as follow,

1) Methane molecules show hydrogen bonding. 
<span>2) Ammonia molecules show hydrogen bonding. </span>
<span>3) Methane has stronger hydrogen bonding than ammonia. </span>
<span>4) Both the compounds do not show hydrogen bonding. </span>
<span>5) Both the compounds have strong hydrogen bonding.
</span>
Answer:
            Correct answer is Option-2 (Ammonia molecules show hydrogen bonding).

Explanation:
                   Hydrogen bond interactions are formed when a partial positive hydrogen atom attached to most electronegative atom of one molecule interacts with the partial negative most electronegative element of another molecule. So, in Ammonia hydrogen gets partial positive charge as nitrogen is highly electronegative. While the C-H bond in Methane is non-polar and fails to form hydrogen bond interactions.
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3 years ago
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Marine organisms that are well adapted to drastic changes in salinity would most likely be found in which environment?
Marat540 [252]
The answer is Estuary
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In a motion diagram the size of the object must be less than the distance moved t or f
KATRIN_1 [288]
The awnser is false.
6 0
3 years ago
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Boron is to the immediate left of carbon in the same row in the periodic table. Which of the following statements compares the r
natita [175]

Answer:

Boron has a larger radius and the protons in carbon exert more pull.

Explanation:

Remember than elements have greater radius as they are closer to the bottom left corner, so boron would have the larger radius here. Carbon has a smaller radius, which makes it easier for the protons in carbon to exert more pull.

7 0
3 years ago
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What is the temperature of 0.645 mole of neon in a 2.00 L vessel at 4.68 atm?
storchak [24]

Answer:

—96.03°C

Explanation:

We'll begin by writing out the information provided by the question. This includes:

Number of mole (n) = 0.645 mole

Volume (V) = 2.00 L

Pressure (P) = 4.68 atm

Temperature (T) =?

Recall: that the gas constant = 0.082atm.L/Kmol

With the ideal gas equation PV = nRT, the temperature of the gas can be obtained as follow:

PV = nRT

4.68 x 2 = 0.645 x 0.082 x T

Divide both side 0.645 x 0.082

T = (4.68 x 2) /(0.645 x 0.082)

T = 176.97 K

Now, We can also express the temperature obtained in celsius as shown below:

Temperature (celsius) = temperature (Kelvin) - 273

Temperature (celsius) = 176.97 - 273

Temperature (celsius) = —96.03°C

The temperature of the Neon gas is

—96.03°C

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3 years ago
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