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3 years ago

Why do chloride ions move to the positive electrode?

Chemistry

1 answer:

Leya [2.2K]3 years ago

4 0

Because chloride ions have a negative charge, so are attracted to the positive electrode

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Which law relates temperature, pressure, volume, and the number of moles of a gas under perfect conditions? Boyle's law Charles'

Shalnov [3]

Answer: Avogadro's Law

Explanation: It states that the volume of the gas is directly proportional to the number of moles of the gas at constant pressure and temperature of the gas.

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3 years ago

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Where in the laboratory is long, unrestrained hair most likely to be a safety concern? near an open flame close to a fume hood n

zimovet [89]

Answer:

near an open flame

Explanation:

if your hair is not tied back near open flames in combination with most hair care products it would turn you into a living torch

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2 years ago

What is the density of motor oil in g/mL if 1.25 quart (qt) weighs 2.25 pounds (lb)?

Doss [256]

Answer:

0.86 g/mL

Explanation:

In order to solve the problem, you have to know the formula for "Density." Density refers to "mass per unit volume." It's formula is:

Density (ρ) = $\frac{mass}{Volume}$

Next, we have to convert the units of measurement in accordance to what is being asked in the problem. It is asking for "g/mL," which means we have to convert 1.25 quarts (qt.) to mL and 2.25 pounds (lbs.) to grams.

Let's solve.

1 quart = 946.35 mL

1.25 qt. x $\frac{946.35 mL}{1 qt.}$ = 1,182.94 mL

1 pound = 453.592 grams

2.25 pounds x $\frac{453.592 grams}{1 pound}$ = 1,020.58 grams

Now that we converted them to their appropriate units of measurement, we can now solve for density.

ρ = $\frac{mass}{Volume}$

ρ = $\frac{1,020.58 grams}{1,182.94 mL}$

ρ = 0.86 g/mL

The density of the motor oil is 0.86 g/mL

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3 years ago

Where does the waste materials in the body come from and why does the body need to get rid of these waste materials

Olin [163]

The waste materials are food and bacteria that were inside your digestive system.

The body has to get rid of them, if it didn't you would just be pilling up a bunch of waste materials in your stomach.

<h2>PLease give Brainliest</h2>

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3 years ago

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A solution of potassium (k2cro4) when added to a solution of lead(ii) acetate (pb(ch3coo)2 produces a yellow precipitate of lead

maria [59]

Let's write the balanced chemical reaction for this:

K₂CrO₄ + Pb(CH₃COO)₂ --> PbCrO₄ + 2 CH₃COOK

The products are lead(ii) chromate and potassium acetate. As you can notice, there is an exchange of ions involved for both reactants. This type ofreaction is called the double-replacement reaction or also called metathesis.

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3 years ago