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2 years ago

Water (H2o) is composed of the same elements as hydrogen peroxide (H2o2) why do these substances have different properties

Chemistry

2 answers:

Pie2 years ago

4 0

<h2>Answer:</h2>

Option A is correct;

A.) The atoms are arranged differently in each molecule

<h3>Explanation:</h3>

Water and hydrogen peroxide are made of the same elements: oxygen and hydrogen. However, hydrogen peroxide (H2O2) has 1 more oxygen than water (H2O).

Hydrogen peroxide is very unstable and breaks down readily into water and a single oxygen molecule.

And also the arrangement of atoms is different in each molecule.

Romashka [77]2 years ago

3 0

its A.) i took the test

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PLS HELP ASAP, WILL GIVE 100 POINTS.

Ivan

Answer: values of the quantum numbers: -6,-5,-4,-3,-2,-1,0,1,2,3,4,5,6

location of the electron: In the 7th energy level away from the nucleus.

Explanation:

From the description of the problem, the magnetic number is given is as -6,-5,-4,-3,-2,-1,0,1,2,3,4,5,6 and the electron is located in the 7th energy level away from the nucleus. Basically, the problem is testing for the understanding of the principal quantum numbers which gives the location of electrons and the magnetic quantum number that shows the spatial orientation of the orbitals.

The orbital designation of the describe electron is 7d

Magnetic quantum number is limited by the azimuthal quantum number which is the quantum number describing the possible shapes. The azimuthal is given as L= n-1. "n" is the principal quantum number which is 7. Therefore L is 6 and the magnetic quantum numbers are -6,-5,-4,-3,-2,-1,0,1,2,3,4,5,6

The position of the electron is given by the principal quantum number which represents the main energy level in which the orbital is located or the average distance from the nucleus.

Got it from quasarJose

Hope it helps

5 0

2 years ago

A chemist places a 100 g cube of each of the metals listed in the table on a separate hot plate. All of the hot plates are ident

Julli [10]

The lower the specific heat the faster the temperaature will change.

You can learn it from the formula:

Q = m * Cs * ΔT

You can solve for ΔT

ΔT = Q / ( m * Cs)

Given the heat (Q) and m (100 g) are equal for the five samples:

ΔT = [Q / m] / Cs. = constat / Cs

So you see the inverse relation between the change of temperatura and the specific heat.

So, the order of change of temperature is given by the specific heat: the lower the specific heat the faster the change of temperature.

With that analysis you can calculate the order in which the cubes will reach the target temperature.

8 0

1 year ago

Read 2 more answers

Tell whether the following pairs of compounds are identical, constitutional isomers, stereoisomers, or unrelated. (a) cis-1,3-Di

Aleks04 [339]

Answer:

(a) Constitutional Isomers

(b) Constitutional Isomers

Explanation:

Constitutional isomers are also known with the name Structural Isomers. These are the compounds which have same chemical formula but differ in arrangement of atoms i.e. structure.

Both the compounds <em>cis-1,3-dibromocyclohexane</em> and <em>trans-1,4-dibromocyclohexane</em> have the same chemical formula $C_{6} H_{10} Br_{2}$ but have different structure as shown in the image below.

In the second case the compounds <em>2,3-dimethylhexane</em> and <em>2,3,3-trimethylpentane</em>, both have same chemical formula $C_{8} H_{18}$ but have different structures which is shown in the image below.

Thus it is clear that in both the groups (a) and (b) the given compounds are Constitutional Isomers.

7 0

2 years ago

William adds two values, following the rules for using significant figures in computations. He should write the sum of these two

Lunna [17]

<span>when it comes to adding or subtracting numbers, his final answer should have the same number of decimal places as the least precise value.
For example if you add 2 numbers; 10.443 + 3.5 , 10.443 has 3 decimal places and 3.5 has only one decimal place.
Therefore 3.5 is the less precise value.
So when adding these 2 values the final answer should have only one decimal place.
after adding we get 13.943 but it can have upto one decimal place. then the second decimal place is less than 5 so the answer should be rounded off to 13.9.
the answer is the same number of decimal places as the least precise value</span>

6 0

1 year ago

Read 2 more answers

The density of liquid Z is 0.9237 g/mL. A student masses a cup

Ulleksa [173]

Answer:

37.65mL

Explanation:

Given parameters:

density of liquid Z = 0.9237g/mL

Mass of liquidZ + mass of cup = 50.7g

Mass of cup= 15.92g