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Water is a polar molecule, meaning the electrons that are shared between the atoms aren't shared equally so oxygen attracts more

amm1812

Answer:

Magnet with a positive and a negative pole

Explanation:

A great analogy to demonstrate what a polar molecule looks like is to imagine a magnet. A magnet has one positively charged end and one negatively charged end, two poles, that is.

Imagine that we have a magnet of a shape of a prism (water molecule has a bent shape). The two base vertices of the face of the triangle are positively charged, that's because hydrogen is less electronegative than oxygen and, hence, the two hydrogen atoms are partially positively charged in a water molecule.

Oxygen is more electronegative than hydrogen meaning it has a greater electron-withdrawing force, so electrons are closer to oxygen within the O-H bonds. Oxygen, as a result, becomes partially negatively charged, so it's our negative pole of the magnet.

4 0

3 years ago

When dissolved in water, which compound is generally considered to be an arrhenius acid? when dissolved in water, which compound

Contact [7]

Answer is: <span>ch3co2h; acetic acid.
</span><span>An Arrhenius acid is a substance that dissociates in water to form hydrogen ions or protons.
</span>Acetic acid dissociate in aqueous solution to form hydrogen ions (H⁺) and acetic anion (CH₃COO⁻).
<span>Balanced chemical reaction (dissociation):
CH</span>₃COOH(aq) ⇄ CH₃COO⁻(aq) + H⁺(aq).

6 0

3 years ago

Perform the following operation and express the answer in scientific notation 8.6500x10^3+6.5500x10^5

Dafna1 [17]

Taking into account the scientific notation, the result of the sum is 6.6365×10⁵.

<h3>Scientific notation</h3>

First, remember that scientific notation is a quick way to represent a number using powers of base ten.

The numbers are written as a product:

a×10ⁿ

where:

a is a real number greater than or equal to 1 and less than 10, to which a decimal point is added after the first digit if it is a non-integer number.
n is an integer, which is called an exponent or an order of magnitude. Represents the number of times the comma is shifted. It is always an integer, positive if it is shifted to the left, negative if it is shifted to the right.

<h3>Sum in scientific notation</h3>

You want to add two numbers in scientific notation. It should be noted that when the numbers to be added do not have the same base 10 exponent, the base 10 power with the highest exponent must be found.

In this case, the highest exponent is 5.

Then all the values are expressed as a function of the base 10 exponent with the highest exponent. In this case: 8.6500×10³= 0.086500×10⁵

Taking the quantities to the same exponent, all you have to do is add what was previously called the number "a". In this case:

0.086500×10⁵ + 6.5500×10⁵= (0.086500+ 6.5500)×10⁵= <u><em>6.6365×10⁵</em></u>

Finally, the result of the sum is 6.6365×10⁵.

Learn more about scientific notation:

brainly.com/question/11403716

brainly.com/question/853571

#SPJ1

8 0

2 years ago

In order to separate the components of a binary mixture, the relative volatility should be a) less than unity b) equal to unity

Tresset [83]

Answer: Option (c) is the correct answer.

Explanation:

A binary mixture is defined as the mixture which contains two components in the aqueous medium. The two components are solute and solvent.

And, volatility is defined as the ability of a liquid solution or substance to readily change into vapors.

For a binary solution the expression for relative volatility is as follows.

$\alpha = \frac{\frac{y_{i}}{x_{i}}}{\frac{y_{j}}{x_{j}}}$ = $K_{i}/K_{j}$

where, $\alpha$ = relative volatility of more volatile component i

$y_{i}$ = vapor-liquid equilibrium concentration of component i in the vapor phase

$x_{i}$ = vapor-liquid equilibrium concentration of component i in the liquid phase

$y_{j}$ = vapor-liquid equilibrium concentration of component j in the vapor phase

$x_{j}$ = vapor-liquid equilibrium concentration of component j in the liquid phase

So, when $\alpha$ > 1 then separation by distillation is easier in nature.

Thus, we can conclude that in order to separate the components of a binary mixture, the relative volatility should be greater than unity.

8 0

3 years ago

Which of the following solutions will have the highest electrical conductivity?. A.0.065M Na3PO4. B.0.075M (NH4)2CO3. C.0.10M Li

Galina-37 [17]

Answer: option A, 0.065 M Na₃PO₄

Explanation:

1) First, notice that the solutes of every solution are ionic compounds with a high dissociation constant.

2) Then, you can assume full dissociation.

3) Also, lacking other information, and since conductity is the measure of the motion of charges (ions in the case of electrolytes), you can assume that for those solutions is valid the statement that "in many cases, conductivity is linked directly to the total dissolved solids".

4) Then, calculate the number of ions dissolved in each case to conclude which is the highest one and, with that, predict which electrolyte will conduct more electricity. Assume 1 liter for all of them, and use

M = n / V ⇒ n = M × V ⇒ n = M × 1 liter

5) A.0.065M Na₃PO₄.

Na₃PO₄ → 3Na⁺ + PO₄³⁻

1 mol → 4 moles

0.065 mol → 4×0.065 moles = 0.26 moles

6) B.0.075M (NH₄)₂CO₃.

(NH₄)₂CO₃ → 2NH₄⁺ + CO₃²⁻

1 mol → 3 moles

0.075 mol → 3×0.075 mol = 0.225 mol

7) C.0.10M LiBr.

LiBr → Li⁺ + Br⁻

1 mol → 2 mol

0.10 mol → 2×0.10mol = 0.20 mol

8) D.0.10M NaI.

NaI → Na⁺ + I⁻

1 mol → 2 mol

0.10 mol → 2×0.10 mol = 0.20 mol

9) E.0.10M KF.

KF → K⁺ + F⁻

1 mol → 2 mol

0.10 mol → 2×0.10 mol = 0.20 mol

10) Therefore the solution with more ions is the 0.065 M Na₃PO₄, with 0.26 moles, and that is the predicted solution with the highest electrical conductivity.

5 0

4 years ago