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vagabundo [1.1K]

3 years ago

10

How does molecular shape affect polarity?

2 answers:

rosijanka [135]3 years ago

7 0

Answer:

when molecule contains polar bond

Explanation:

apex

Zigmanuir [339]3 years ago

4 0

Answer: Think of each polar bond in a molecule as a little arrow pointing from positive to negative. So, the geometry of the molecule determines the direction that the bond dipole vectors point. The polarity of the molecule results from adding up all these individual bond dipoles.

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Which of the following are correct for zero-order reactions?

GREYUIT [131]

Answer:

The answer is "Choice A and Choice B"

Explanation:

The Zero-Order reactions are usually found if a substrate, like a surface or even a catalyst, is penetrated also by reactants. Its success rate doesn't depend mostly on the amounts of the various reaction in this reaction.

Let the Rate = k

As $\frac{dx}{dt} \ rate\ \ K_0$ doesn't depend on reaction rate, a higher reaction rate does not intensify the reaction.

By the rate $k_0 =\frac{dx}{dt},$ the created based and the reaction rate is about the same.

5 0

2 years ago

What is the [H+] if the pH of a

jeyben [28]

<h3>Solution:</h3>

$[\text{H}^{+}] = 10^{-\text{pH}}$

$[\text{H}^{+}] = 10^{-1.65}$

$\boxed{[\text{H}^{+}] = 2.2 × 10^{-2} \: M}$

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#ILoveYouShaina

3 0

2 years ago

Binary compound of oxygen and an unknown element,X, has the formula XO2 and is 69.55 mass % oxygen, what is the weight of elemen

marissa [1.9K]

Answer:

Weight of element X = 14.01 gram

Explanation:

Mass percentage is calculated by using :

$Percent =\frac{Mass\ of\ element}{Total\ mass}\times 100$

$O\ Percent=\frac{Mass\ of\ O}{Total\ mass\ of\ XO2}\times 100$

Mass of O = 16.0 gram

let mass of X = X grams = ?

Mass of XO2 = mass of X + 2(mass of O)

Mass of XO2 = X + 2(16)

Mass of XO2 = X + 32

Total mass of O in the compound = 2(16) = 32 grams

Percent O = 69.55 %

$Percent\ O =\frac{Mass\ of\ O}{Total\ mass\ of\ XO2}\times 100$

$69.55=\frac{32}{X+32}\times 100$

$\frac{69.55}{100}=\frac{32}{X+32}$

$0.6955=\frac{32}{X+32}$

$0.6955\times (X+32)=32$

$0.6955X+ 22.256=32$

$0.6955X=9.744$

$X=\frac{9.744}{0.6955}$

$X =14.01$

weight of element X = 14.01 gram

14.01 is mass of nitrogen N

The correct formula of this element is NO2

6 0

2 years ago

In the nucleus of an Adam there are 18 protons and 20 neutrons what are the atomic number and mass number of this isotope

yKpoI14uk [10]

Atomic number = 18 (Number of protons)
Mass number = 18 + 20 (Number of protons + neutrons)

6 0

2 years ago

Read 2 more answers

How many atoms of oxygen are present in the reactants and products? 6CO2+6H2O-> C6H12O6+6O2

REY [17]

6 Carbon atoms
18 Oxygen atoms
12 Hydrogen atoms

6 0

2 years ago