All categories

3 years ago

QUESTION 4

Chemistry

1 answer:

ehidna [41]3 years ago

8 0

Answer:

The answer to your question is: Arrhenius base

Explanation:

Arrhenius base ; an Arrhenius base is able to produce (OH-) in water, so Ca(OH)2 is an Arrhenius base.

Brønsted-Lowry base . An Bronsted and Lowry base is able to accept a proton, Ca(OH)2 can do it.

Lewis base this base is able to donate a pair of electrons, Ca(OH)2 does not have a pair of electrons to donate.

All of the above. This option is wrong only the first option is correct.

You might be interested in

Potassium hydroxide, KOH, is considered a _____________ in an acid-base reaction because it ___________ a hydrogen ion to/from t

soldi70 [24.7K]

<span>Answer: Potassium hydroxide, KOH, is considered a BASE in an acid-base reaction because it ACCEPTS a hydrogen ion from the other reactant.

According to </span><span>Brønsted–Lowry acid–base theory, Base is a specie which accepts proton (H</span>⁺) while, Acid is a specie which donate proton.

Bases may contain a negative charge or lone pair of electrons, while, Acids contain positive charge or a neutral atom with incomplete octet.

In given statement KOH is acting as a base because it contains a negatively charged hydroxyl group which can accept proton from a acid, i.e.

KOH → K⁺ + OH⁻

Reaction of OH⁻ with any acid,

K⁺ + OH⁻ + HCl → H₂O + KCl

6 0

4 years ago

Read 2 more answers

Which of the following statements is true?

siniylev [52]

A DNA and chromosomes are found in different types of cells

7 0

3 years ago

Read 2 more answers

Anyone know this please and thank you

Bas_tet [7]

Answer:

The correct answer is a hypothesis.

8 0

2 years ago

Ribosomes are packets of RNA and protein that play a crucial role in both animal and plant cells. Ribosomes aid in the process o

netineya [11]

Answer: mutation

Explanation:

8 0

3 years ago

Correct name for #10 please

ira [324]

Answer:

CH₃CH(CH₃)CH(C₃H₇)CH₂CH(CH₃)₂:

4-isopropyl-2-methylpentane.

Explanation:

Step One: Draw the structure formula of this compound. Parentheses in the formula indicate substitute groups that are connected to the carbon atom to the left.

For example, the first (CH₃) indicates that the second carbon atom from the left is connected to:

the CH₃- on the left-hand side,
the -CH(C₃H₇)CH₂CH(CH₃)₂ on the right-hand side,
a hydrogen atom, and
an additional CH₃- group that replaced one hydrogen atom.

Each carbon atom in this compound is connected to four other atoms. All bonds between carbon atoms are single bonds.

The C₃H₇ in the second pair of parentheses is the condensed form of CH₃CH₂CH₂-. See the first sketch attached. Groups in parentheses are highlighted.

Step Two: Find the carbon backbone. The backbone of a hydrocarbon is the longest chain of carbon atoms that runs through the compound. See the second sketch attached. The backbone of this compound consists of seven carbon atoms and is highlighted in green. The name for this backbone shall be heptane.

Step Three: Identify and name the substitute groups.

The two substitute groups are circled in blue in the second sketch.

The one on the right -CH₃ is a methyl group.
The one on the left is branched. $\begin{aligned}\text{CH}_3-&\text{CH}-\text{CH}_3\\[-0.5em]&\;|\end{aligned}$ This group can be formed by removing one hydrogen from the central carbon atom in propane. The name for this group is isopropyl.

Step Four: Number the atoms.

Isopropyl shall be placed before methyl. Start from the right end to minimize the index number on all substitute groups. The methyl group is on carbon number two and the isopropyl group on carbon number four. Hence the name:

4-isopropyl-2-methylheptane.

5 0

4 years ago