Ask question

Ask question

All categories

Hunter-Best [27]

3 years ago

12

What is the relationship between the period and the orbital radius? Select one: a. It is a direct relationship- As the period in

creases the orbital radius also increases. b. It is an inverse relationship- As the period increases the orbital radius decreases.

2 answers:

Lapatulllka [165]3 years ago

7 0

I think the answer is a, because the orbital radius is depends on ghe direct relationship

balu736 [363]3 years ago

6 0

I'm pretty sure it's A, but then again I'm only in 8th grade. Sorry if this doesn't help:(

You might be interested in

Classify the following as Arrhenius, Bronsted-Lowry, or Lewis acid-base reactions. A reaction may fit all, two, one, or none of

nika2105 [10]

Answer:

I. Lewis acid-base reaction

II. Arrhenius, Brønsted-Lowry, and Lewis' acid-base reaction

III. Brønsted-Lowry and Lewis'acid-base reaction

IV. Lewis acid-base reaction

Explanation:

According to Arrhenius, an acid is a substance that dissolves in water to produce H+ ions, and a base is a substance that dissolves in water to produce hydroxide (OH−) ions.

In the reaction below, AH is an avid, BOH is a base reacting together to form a salt(A-B+) and water only.

AH + BOH ---> A-B+ + H2O

According to Brønsted-Lowry definition, an acid is any substance that can donate a proton, and a base is any substance that can accept a proton.

In the reaction below, AH is an acid while B is a base, reacting together to form an acid-base conjugate pair.

AH + B <-----> BH+ + A-

According to Lewis' definition, an acid is a species that accepts an electron pair while a base donates an electron pair resulting in a coordinate covalently bonded compound, also known as an adduct. In the reaction below, A+ is an acid, B- is a base, reacting together to form product A-B.

A+ + B- ------> A-B

Considering the above definitions;

I. Cu²+ + 4 Cl− ---> CuCl4²− is a Lewis acid-base reaction because it involves electron sharing only.

II. Al(OH)3 + 3HNO3 ---> Al3+ + 3H2O + 3 NO3− is an Arrhenius, Brønsted-Lowry, and a Lewis acid-base reaction because it involves protons, electrons and hydroxide ions.

III. N2 + 3 H2 ---> 2NH3 is a Lewis acid-base reaction because it involves sharing of electrons only.

IV. CN− + H2O ---> HCN + OH is both a Lewis and Brønsted-Lowry acid-base reaction because both protons and electrons sharing is involved.

5 0

3 years ago

What is the empirical formula of sulphur dioxide which contains 50% by mass of sulphur

expeople1 [14]

Answer:

Question what are you doing the same thing you guys have a good time

Explanation:

is this the same question why did they do that and how much they do it

7 0

3 years ago

Read 2 more answers

Compute the sugar content in an 8 oz sample of a soft drink. If the sugar content as per label on the product =10g per 100ml.

Nataly_w [17]

Answer:

$m_{sugar}=23.7g\ sugar$

Explanation:

Hello,

In this case, we can first compute the volume of the sample in mL from the ounces:

$8oz*\frac{29.5735mL}{1oz} =236.6mL$

Thus, with the volume of the sample, we can compute the amount of sugar given the 10 g of sugar per 100 mL of soft drink as shown below:

$m_{sugar}=236.6mL*\frac{10g\ sugar}{100mL}\\ \\m_{sugar}=23.7g\ sugar$

Best regards.

6 0

3 years ago

Calculate the mass in grams of each of the followinga. 5.94 x 10^20 H2O2 moleculesb. 2.8 x 10^22 SO2 moleculesc. 4.5 x 10^25 O3

ryzh [129]

Answer:

$0.0335\ \text{g}$

$2.978\ \text{g}$

$3586.84\ \text{g}$

$0.0026\ \text{g}$

Explanation:

Mass in grams is given by

$m=\dfrac{nM}{N_A}$

where

n = Number of molecules

$N_A$ = Avogadro's number = $6.022\times 10^{23}\ \text{mol}^{-1}$

M = Molar mass of molecule

Molar mass of $H_2O_2$ = 34.0147 g/mol

$n=5.94\times 10^{20}$

$m=\dfrac{5.94\times 10^{20}\times 34.0147}{6.022\times 10^{23}}\\\Rightarrow m=0.0335\ \text{g}$

Mass of $H_2O_2=0.0335\ \text{g}$

Molar mass of $SO_2$ = 64.066 g/mol

$n=2.8\times 10^{22}$

$m=\dfrac{2.8\times 10^{22}\times 64.066}{6.022\times 10^{23}}\\\Rightarrow m=2.978\ \text{g}$

Mass of $SO_2=2.978\ \text{g}$

Molar mass of $O_3$ = 48 g/mol

$n=4.5\times 10^{25}$

$m=\dfrac{4.5\times 10^{25}\times 48}{6.022\times 10^{23}}\\\Rightarrow m=3586.84\ \text{g}$

Mass of $O_3=3586.84\ \text{g}$

Molar mass of $CH_4$ = 16.04 g/mol

$n= 9.85\times 10^{19}$

$m=\dfrac{9.85\times 10^{19}\times 16.04}{6.022\times 10^{23}}\\\Rightarrow m=0.0026\ \text{g}$

Mass of $CH_4=0.0026\ \text{g}$

4 0

3 years ago

Which of the following is an example of a solution?

neonofarm [45]

Air is an example of a solution. The other two answers are incorrect because they are heterogenous mixtures, not homogenous mixtures(another name for solution).

7 0

3 years ago