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2 years ago

Who among the following is most likely to have elevated levels of endorphins

Chemistry

1 answer:

andrew11 [14]2 years ago

8 0

You have to type in the answers as well so we have all the information.

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2NaCl → 2Na +Cl2 What reaction is this

babunello [35]

Answer:

Decomposition reaction

Explanation:

A single reactant breaking down to form 2 or more products is decomposition

5 0

2 years ago

5. In which group of elements do most atoms have completely filled s and p velence sublevels? A) halogens B) noble gases C) alka

ivanzaharov [21]

Noble Gases is the answer (please give me brainliest

4 0

3 years ago

Calculate the volume in milliliters of a 0.420mol / L barlum chlorate solution that contains 25.0 g of barium chlorate (Ba(ClO 3

Pachacha [2.7K]

Answer: The volume of barium chlorate is 195.65 mL

Explanation:

To calculate the volume of solution, we use the equation used to calculate the molarity of solution:

$\text{Molarity of the solution}=\frac{\text{Mass of solute}\times 1000}{\text{Molar mass of solute}\times \text{Volume of solution (in mL)}}$

Given mass of barium chlorate = 25.0 g

Molar mass of barium chlorate = 304.23 g/mol

Molarity of solution = 0.420 mol/L

Volume of solution = ?

Putting values in above equation, we get:

$0.420mol/L=\frac{25.0\times 1000}{304.23\times V}\\\\V=\frac{25.0\times 1000}{304.23\times 0.420}=195.65mL$

Hence, the volume of barium chlorate is 195.65 mL

6 0

3 years ago

A flexible container at an initial volume of 6.13 L contains 2.51 mol of gas. More gas is then added to the container until it r

aleksley [76]

Answer:

2.12 moles of gas were added.

Explanation:

We can solve this problem by using Avogadro's law, which states that at constant temperature and pressure:

V₁n₂=V₂n₁

Where in this case:

V₁ = 6.13 L

n₂ = ?

V₂ = 11.3 L

n₁ = 2.51 mol

We input the data:

6.13 L * n₂ = 11.3 L * 2.51 mol

n₂ = 4.63

As 4.63 moles is the final number of moles, the number of moles added is:

4.63 - 2.51 = 2.12 moles

5 0

2 years ago

Honeybee venom is a solution that contains formic acid, which gives the venom an approximate ph of 5.0. which substance is more

Genrish500 [490]

Those substances which has pH less than 5 are more acidic than Honeybee Venom. Some of them are listed below along with their pH scale,

1) Acid rain and Tomato Juice has a pH of 4.

2) Soda and Orange Juice has a pH of 3.

3) Vinegar and Lemon Juice has pH of 2.

4) Gastric acid has a pH of 1.

5) Battery Acids have pH of zero.

5 0

3 years ago