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nignag [31]
3 years ago
11

When ammonium chloride is dissolved in water, the beaker gets cold. Which type of reaction does this describe

Chemistry
1 answer:
gulaghasi [49]3 years ago
7 0

Answer:

B

Explanation:

i think with exothermic reactions heat is released

this is what i looked up

hope this helps i took chem last year and think this is what i learned

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If I add 475mL of water to 75.0mL of a 0.315M NaOH solution, what will the molarity of the diluted solution be?
pantera1 [17]
Answer is: <span>the molarity of the diluted solution 0,043 M.
</span>V(NaOH) = 75 mL ÷ 1000 mL/L = 0,075 L.
c(NaOH) = 0,315 M = 0,315 mol/L.
n(NaOH) = c(NaOH) · V(NaOH).
n(NaOH) = 0,075 L · 0,315 mol/L.
n(NaOH) = 0,023625 mol.
V(solution) = 0,475 L + 0,75 L.
c(solution) = 0,023625 mol ÷ 0,550 L.
c(solution) = 0,043 mol/L.
5 0
3 years ago
In an organic structure, you can classify each of the carbons as follows: Primary carbon (1o) = carbon bonded to just 1 other ca
Alla [95]

The question is incomplete, complete question is :

In an organic structure, you can classify each of the carbons as follows: Primary carbon (1°) = carbon bonded to just 1 other carbon group Secondary carbon (2°) = carbon bonded to 2 other carbon groups Tertiary carbon (3°) = carbon bonded to 3 other carbon groups Quaternary carbon (4°) = carbon bonded to 4 other carbon groups How many carbons of each classification are in the structure below? How many total carbons are in the structure? How many primary carbons are in the structure? How many secondary carbons are in the structure? How many tertiary carbons are in the structure? How many quaternary carbons are in the structure?

Structure is given in an image?

Answer:

There are 10 carbon atoms in the given structures out of which 6 are 1° , 1 is 2° , 2 are 3° and 1 is 4°.

Explanation:

Total numbers of carbon = 10

Number of primary carbons that is carbon joined to just single carbon atom = 6

Number of secondary carbons that is carbon joined to two carbon atoms = 1

Number of tertiary carbons that is carbon joined to three carbon atoms = 2

Number of quartenary carbons that is carbon joined to four carbon atoms = 1

So, there are 10 carbon atoms in the given structures out of which 6 are 1° , 1 is 2° , 2 are 3° and 1 is 4°.

3 0
3 years ago
PLEASE HELP !!!
mart [117]

Explanation:

measuring the change of temperature when 2 liquids are mixed

4 0
3 years ago
This equation is not balanced. Click on the coefficient we should change first.<br> help ASAP
horrorfan [7]

Answer:  The coefficient we should change first is for NO_{3}.

Explanation:

The given reaction equation is as follows.

Al + Ni(NO_{3})_{2} \rightarrow Al(NO_{3})_{3} + Ni

Here, number of atoms present on reactant side are as follows.

  • Al = 1
  • Ni = 1
  • NO_{3} = 2

Number of atoms present on the product side are as follows.

  • Al = 1
  • Ni = 1
  • NO_{3} = 3

To balance this equation, multiply Al by 2 and NO_{3} by 3 on reactant side. Also, multiply Al(NO_{3})_{3} by 2 and Ni by 3 on the product side.

Hence, the equation can be rewritten as follows.

2Al + 3Ni(NO_{3})_{2} \rightarrow 2Al(NO_{3})_{3} + 3Ni

Now, number of atoms present on reactant side are as follows.

  • Al = 2
  • Ni = 3
  • NO_{3} = 6

Number of atoms present on product side are as follows.

  • Al = 2
  • Ni = 3
  • NO_{3} = 6

Since, the atoms on both reactant and product side are same. Hence, it is now a balanced chemical equation.

Thus, we can conclude that the coefficient we should change first is for NO_{3}.

7 0
3 years ago
A chemical engineer must calculate the maximum safe operating temperature of a high-pressure gas reaction vessel. The vessel is
Kruka [31]

Answer: The destruction of crust occurs at deep-sea trenches. Oceanic rocks are pillow-shaped when formed. Rocks across the ocean floor have alternating magnetic stripes. Younger rocks are closer to mid-ocean ridges.

4 0
2 years ago
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