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4 years ago

In a water solution what form do hydrogen ions exist in?

1 answer:

8 0

All hydrogen ions are formed from a 'core' H3O+. They are not fixed structures in aqueous solution but exist as 'flickering' clusters, as with other water clusters, with hydrogen bonding water molecules continuously coming and going. The lifetimes of the clusters are independent of the lifetime of individual linkages.

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1. A 18 M solution of an acid that ionizes only slightly in solution would be termed___

kondor19780726 [428]

A 18 M solution of an acid that ionizes only slightly in solution would be termed
concentrated and weak. The concentration of the acid is high. The acid which dissociates partially in water is a weak acid.

Calculate the [H^+] for the aqueous solution in which [OH^-] is 1 x10^-9. Is this solution acidic, basic or neutral. To determine [H+] use:

1x10^-14 = [OH-][H+]
solve for [H+]
[H+] = 1x10^-14/1x10^-9
= 1x10^-5

4 0

3 years ago

A book is pushed off the edge of a table. At what point during the fall will the potential and kinetic energy be equal?

vfiekz [6]

Answer:

KE = PE at half the table Height:

Explanation

AT ANY POINT IN THE BOOK'S FALL,

TOTAL E = PE +KE

THE TOTAL E IS CONSTANT

Before the book is pushed off, the total energy is potential

TOT E=PE =MGH

BEFORE THE BOOK HITS THE GROUND, THE TOTAL E IS KINETIC

TOT=KE = MVXV/2

WHEN KE = PE

KE+PE = MGH (STARTING ENERGY SINCE E IS CONSERVED)

OR PE+ PE = MGH

OR MGH' + MGH' =MGH

OR 2H' =H

H' (NEW HEIGHT) =H/2

5 0

3 years ago

In examining an organic compound, you discover that it contains the following functional group. What class of organic compound i

Romashka [77]

Option B. carboxylic acid

For example

CH3 - COOH, is the acetic acid or etanoic acid.

where - COOH is C bonded with O (trhough doble bond) and with OH (with a single bond)

8 0

3 years ago

Look around you and identify five objects. Decide if they are composed of natural or synthetic materials.

Usimov [2.4K]

Answer:

The five objects that are Cherries, rocks, wooden chair( made up of natural material) Soap and nylon cloth ( made from synthetic material)

Explanation:

Natural materials are those made from the physical matter, which has been occurred naturally or from any natural source i.e. plants, animal or from the ground or soil. Synthetic materials are those which are man-made, made from the natural materials but by under-going synthetic process or some chemical treatment under the laboratory condition.

The objects that are found around are:

Cherry- It is plant product and thus a natural material.

Rocks - They are naturally available obtained from the earth's surface.

Wooden chair - This is made from the wood, wood is a natural material.

Soap - Soap is synthetic material made from the fat and alkali in the laboratory.

Nylon cloth - It is made up of polymer, under going various methods under laboratory condition.

8 0

4 years ago

Why baking soda is used to make doughnuts Please answer it soon

inessss [21]

Answer:

There are recipes that are made with both baking powder (for leavening) and baking soda (to facilitate browning by increasing the pH making batters and dough a little more alkaline).

hope this helpssss.

3 0

3 years ago