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Paul [167]
3 years ago
10

Please Help mE!!!!!!!!!!!!!!!!!!!!!!

Chemistry
2 answers:
JulijaS [17]3 years ago
8 0
The answer is an ENDOTHERMIC REACTION.
HOPE THIS HELPS!!!!!
Lera25 [3.4K]3 years ago
4 0

It is an endothermic reaction because energy is being added that causes the temperature to increase.

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Why are covalent bonds between hydrogen and nitrogen or oxygen polar? see section 2.1 ( page 57) ?
ASHA 777 [7]
Polar molecules exhibit an unequal balance of charges between the individual elements of the compound. This is brought about by the large difference in their electronegativities. The H atom has the least amount of electronegativity. Then, it is a known periodic trend, that as you go downwards in a group, electronegativity decreases, and increase as you go from left to right. Thus, you can deduce that the most electronegative elements are found in the upper right corner which includes O, N and F atoms. Any bond created between Hydrogen and any of O, N and F atoms is a polar bond.
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3 years ago
When you get into a Parked car in the summer time, the metal clip of the seatbelt is often too hot to touch, while the seatbelt
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The seat belt fabric

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3 years ago
What happens when nitrogen and hydrogen comes in contact at high temperature and pressure in presence of iron powder and molybde
Sidana [21]

Answer:

<h2>Ammonia Gas</h2>

Explanation:

It result in formation of ammonia gas.

N2 + 3H2 ---<u>iron</u><u>/</u><u>molybdenum</u><u>/</u><u>high</u><u> </u>temp/pres--- > 2 NH3

It forms ammonia gas.

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6 0
3 years ago
Soluble substances can dissolve in certain solvents true or false
daser333 [38]

Answer:

True

Explanation:

Soluble substances dissolve.

Therefore they wouldn't be called soluble if they can't dissolve in solvents

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3 0
4 years ago
A gas mixture of Ne and Ar has a total pressure of 4.00 atm and contains 16.0 mol of gas. If the partial pressure of Ne is 2.75
Stolb23 [73]

Answer:

5 moles of Argon is present in the mixture.

Explanation:

Total pressure of the gaseous mixture = 4 atm

Total number of moles = 16

Partial pressure of Ne = 2.75 atm

By Dalton's law of partial pressure, the total pressure of gaseous mixture is the sum of partial pressures of individual gases which are non-reactive.

Hence:

P_{total}=P_{Ar}+P_{Ne}\\4=P_{Ar}+2.75\\P_{Ar}=1.25\ atm

Also :

Partial pressure = mole fraction*total pressure

P_{Ar}=X_{Ar}P_{total}

X_{Ar}=\frac{1.25}{4}=0.3125

\frac{n_{Ar}}{n_{total}}=0.3125\\n_{Ar}=5

∴Number of moles of Argon = 5

4 0
4 years ago
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