CHEMISTRY HIGH SCHOOL

Which two compounds have the same molecular formula but different chemical and physical properties?(1) CH3CH2Cl and CH3CH2Br
(2) CH3CHCH2 and CH3CH2CH3
(3) CH3CHO and CH3COCH3
(4) CH3CH2OH and CH3OCH3

Answers

Answer 1
Answer:

Answer is (4) - CH₃CH₂OH and CH₃OCH₃.


Both CH₃CH₂OH and CH₃OCH₃ have same molecular formula as C₂H₆O. But CH₃CH₂OH is an alcohol and CH₃OCH₃ is an ether.


Although two compounds have a same molecular formula, the atomic arrangement of those compounds differs from each other.


Hence, CH₃CH₂OH and CH₃OCH₃ are isomers of the formula C₂H₆O.


Due to the different arrangement of atoms, both compounds have different chemical and physical properties.
Answer 2
Answer: The answer is (4) CH3CH2OH and CH3OCH3. You need to figure out which pair has the same molecular formula which means that they have the same number of same atoms. Then you can get the write answer.

Related Questions

_________ refers to the total energy of a system.a. Enthalpyc. Entropyb. Heating curved. Free energy
Which pair of elements is MOST likely to chemically combine and form ionic bonds?. A). chlorine and chlorine. B). lithium and chlorine. C). carbon and hydrogen. D). sulfur and oxygen
The action of some commercial drain cleaners is based on the following reaction: 2 NaOH(s) + 2 Al(s) + 6 H2O(l) → 2 NaAl(OH)4(s) + 3 H2(g) What is the volume of H2 gas formed at STP when 6.32 g of Al reacts with excess NaOH?
Atoms A and X are fictional atoms. Suppose that the standard potential for the reduction of X^2+ is +0.51 V, and the standard potential for the reduction of A^2+ is -0.33. Find the standard potential for an electrochemical cell with the cell reaction that follows.
A medium-temperature star like the Sun would most likely emit its most intense radiation as _____. A. Ultraviolet light B. Visible light C. Microwaves D. Radio waves

Which formula represents a compound whose molecules are tetrahedral? (A) BH₃
(B) C₂H₂
(C) CH₄
(D) H₂O
(E) C₂H6₆

Answers

......H
......|
H—C—H
..... |
..... H

methane CH4

What is the reaction between aspirin and hydrochloric acid

Answers

According to Bronsted-Lowry reaction- an acid is any substance that donates a proton (H+ ion) to another substance hence these two substance are acid aspirin (acetylsalicyclic acid) and hydrochloric acid (HCl). And there are two pairs - an acid with a corresponding conjugate base and a base with a corresponding conjugate acid. These pairs are called conjugate acid-base pairs.

Ethanol contains the elements carbon, hydrogen, and oxygen. When ethanol burns, it chemically reacts with oxygen gas. C2H6O + O2 ethanol oxygen gas What elements will be present in the substances that are created when ethanol burns?

Answers

Answer:

                    The elements that will be present after the burning of Ethanol are;

                  (i) Carbon

                   (ii)  Oxygen

                   (iii) Hydrogen

Explanation:

                    The balanced chemical equation for the burning of ethanol is as follow;

                            C₂H₅OH + 3 O₂ → 2 CO₂ + 3 H₂O

It can be observed in given balanced chemical equation that there three elements involved in this entire reaction. The elements that present in the reactant side are also found on the product side. It means that the elements have just rearranged going from reactant to product.

This means that this reaction is obeying Law of Conservation of Mass which states that mass can neither be created nor destroyed but it can be changed from one form to another hence, to keep the mass on both sides of the reaction balanced the same elements should be present on the product side too.

Answer: carbon, hydrogen, and oxygen only

Explanation: When a chemical reaction occurs, the atoms in the original set of substances are rearranged to form a new set of substances. The number of atoms of each element does not change.

The elements carbon, hydrogen, and oxygen are the only elements present in the original substances, so the only elements in the final substances after the reaction will be carbon, hydrogen, and oxygen, as well. The number of atoms of each element must be the same before and after the reaction.

Why graphite can rub off the pencil onto the paper

Answers

Graphite is an extremely soft material and is formed in layers as well.This combination of traits allows for the graphite to scrape off of the pencil tip and onto the paper.

A hydrocarbon is said to be saturated if: A)           one end of the molecule is hydrophilic while the other end is hydrophobic.
                B)            it has one or more double bonds between carbon atoms.
                C)            it contains more than one functional group.
                D)           each internal carbon atom is covalently bonded to two hydrogen atoms.
                E)            its functional groups include at least one aromatic ring.

Answers

D. If each eternal carbon is bonded to 2 hydrogen atoms, the hydrogen carbon is saturated. An easier way to remember if a hydrocarbon is saturated or not is to look for a double bond between 2 carbons in the chain, if this if present the hydrocarbon is UNsaturated, if this is not present the hydrocarbon is saturated.

Why is the concentration of iodine so much lower than other reactants like acetone and HCL?

Answers

The concentration all depends on the variation of the volume. The volume is the amount. Iodine in general is based on a zero, which is why its concentration is lower than others.

How do volume and concentration affect the rate of response?

As the fuelsample volume will increase (e.g. as we upload greater gasoline into a bendy field, like a balloon), the reaction price stays approximately identical. The attention efficaciously does now not exchange because of the increase in mols of fuel convertingproportionally with the growth in container extent.

How the awareness affects the charge of reaction?

Growing the concentration of 1 or more reactants will regularly grow the price of the reaction. This takes place due to the fact higherattention to a reactant will cause greatercollisions of that reactant in a particular term.

Learn more about concentration here brainly.com/question/17206790

#SPJ2
The concentration all depends on the variation of the volume. The volume is the amount. Iodine in general is based on a zero, which is why it's concentration is lower than others.
Other Questions
Which process results in a chemical change? A) Tearing tin foilB) melting an iron bar C) crushing an aluminum can D) burning magnesium ribbon
The metal wire in an incandescent light bulb glows when the light is switched on and stops glowing when it is switched off. This simple process is which kind of a change?
Calculate the percentage of iron in iron (III) sulphate
The "skin" of the statue of liberty is made of iron. true false