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3 years ago

In an experiment Nyla collected the following information about a solution made from a certain food:

Chemistry

1 answer:

lorasvet [3.4K]3 years ago

4 0

Answer:

Explanation:

pH<7

so it must be acid

easy ;)

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Which location represents a period on a Periodic Table? A. a vertical row B. a horizontal row C. a diagonal row on the per

prohojiy [21]

The periods inside the Periodic Table is B. a horizontal row, and is numbered 1 through 7

hope this helps

7 0

3 years ago

Andrea and the other members of the tennis team are practicing hitting tennis balls. If two people hit identical balls at the sa

almond37 [142]

Answer:

Explanation:

The formula for calculating kinetic energy is 1/2mv^2, where m is the mass and v is the velocity or speed of the object. Since all of the balls have the same mass, the one with the highest speed or velocity will have the highest kinetic energy. Hope this helps!

8 0

3 years ago

Suppose you are titrating vinegar, which is an acetic acid solution

kotegsom [21]

Answer:

0.373 M

Explanation:

The balanced equation for the reaction is given below:

HC2H3O2 + NaOH —> NaC2H3O2 + H2O

From the balanced equation above, the following were obtained:

Mole ratio of the acid, HC2H3O2 (nA) = 1

Mole ratio of the base, NaOH (nB) = 1

Next, we shall write out the data obtained from the question. This include:

Volume of base, NaOH (Vb) = 32.17 mL

Molarity of base, NaOH (Mb) = 0.116 M

Volume of acid, HC2H3O2 (Va) = 10 mL

Molarity of acid, HC2H3O2 (Ma) =..?

The molarity of the acid solution can be obtained as follow:

MaVa/MbVb = nA/nB

Ma x 10 / 0.116 x 32.17 = 1

Cross multiply

Ma x 10 = 0.116 x 32.17

Divide both side by 10

Ma = (0.116 x 32.17) /10

Ma = 0.373 M

Therefore, the concentration of the acetic acid is 0.373 M.

8 0

3 years ago

Which of the following ions is formed when a base is dissolved in a solution?

Aneli [31]

Answer:

$\huge\boxed{\sf OH-}$

Explanation:

<u>According to Arrhenius concept of acid and base:</u>

"When a base in a solution, produces/yields OH- (Hydroxide) ions."

So, when a base is dissolved in a solution, it produces OH- ions.

<u>For example:</u>

NaOH ⇄ Na⁺ + OH⁻ (So, it is a base)

$\rule[225]{225}{2}$

Hope this helped!

3 0

2 years ago

Which of the following are strong electrolytes? Hcl hc2h3o2 nh3 kcl

Arturiano [62]

<h3><u>Answer;</u></h3>

HCl and KCl

<h3><u>Explanation</u>;</h3>

Strong electrolytes are strong bases and acids.
HCl is a strong acid; it dissociates completely to form H+ and Cl- ions. Thus, it is a strong, rather than weak, electrolyte.
CH3COOH is acetic acid, a weak acid. Only some of it will dissociate (to H+ and acetate ions), thus, it will only be a weak electrolyte.
NH3 will react with water as a weak base: NH3 + H2O → NH4+ + OH-. It will thus also be a weak electrolyte.
KCl is a soluble ionic compound, and as such, it will be a strong electrolyte.

5 0

3 years ago

Read 2 more answers