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3 years ago

Which statement describes why the viscosity of water is lower than that of

Chemistry

2 answers:

kodGreya [7K]3 years ago

6 0

Answer:

Option B. The molecules that make up water can more easily slide past one another than the molecules that make up a olive oil.

andriy [413]3 years ago

6 0

Answer:

B. The molecules that make up water can more easily slide past one

another than the molecules that make up olive oil.

Explanation:

a p e x

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1 what do you understand by the term isotopes 2 why do I should talk of an element process identical chemical properties 3 name

Bad White [126]

Answer:

Isotopes of an element have same number of protons but different number of neutrons. Which means isotopes of an element have same atomic number but different mass number.

The chemical property of an element is determined by the number of electrons. And as all the isotopes have same number of electrons, they have same chemical properties.

Thus as isotopes of an element have same atomic number , they have same number of electrons and protons. As they have different mass number, the number of neutrons will be different. Hydrogen has three isotopes , $^1_1\textrm{H}$ , $^2_1\textrm{H}$ and $^3_1\textrm{H}$ . Thus $^1_1\textrm{H}$ has no neutron.

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2 years ago

What is the difference between a mixture and a compound? (need an easy two sentence answer (able to explain it to a 8 your old).

lina2011 [118]

A mixture is made from two or more substances that are chemically unlike and are not chemically joined. A compound is a substance formed when two or more elements chemically react with each other to ... substances because no new substance is formed, therefore they do not have any fixed properties.

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3 years ago

Some fruits and vegetables are preserved by pickling them. Nandini got confused

stepan [7]

Answer:

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3 years ago

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Pepsi [2]

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3 years ago

Read 2 more answers

Leo carefully pipets 50.0 mL of 0.500 M NaOH into a test tube. She places the test tube

Bess [88]

Let's consider the neutralization reaction between HCl and NaOH.

NaOH + HCl ⇒ NaCl + H₂O

To determine the pH of the resulting mixture, we need to determine the reactant in excess. First, we will calculate the reacting moles of each reactant.

NaOH: 0.0500 L × 0.500 mol/L = 0.0200 mol

HCl: 0.0750 L × 0.250 mol/L = 0.0188 mol

Now, let's determine the reactant in excess and the remaining moles of that reactant.

NaOH + HCl ⇒ NaCl + H₂O

Initial 0.0200 0.0188

Reaction -0.0188 -0.0188

Final 1.20 × 10⁻³ 0

The volume of the mixture is 50.0 mL + 75.0 mL = 125.0 mL. Then, 1.20 × 10⁻³ moles of NaOH are in 125.0 mL of solution. The concentration of NaOH is:

[NaOH] = 1.20 × 10⁻³ mol/0.1250 L = 9.60 × 10⁻³ M

NaOH is a strong base according to the following equation.

NaOH ⇒ Na⁺ + OH⁻

The concentration of OH⁻ is 1/1 × 9.60 × 10⁻³ M = 9.60 × 10⁻³ M.

The pOH is:

pOH = -log [OH⁻] = -log 9.60 × 10⁻³ = 2.02

We will calculate the pH using the following expression.

pH = 14.00 - pOH = 14.00 - 2.02 = 11.98

The pH is 11.98. Since pH > 7, the solution is basic.

You can learn more about neutralization here: brainly.com/question/16255996

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2 years ago