We use glass tools because it can sustain  high temperature while plastic tools when hold gas like HCL acid it will melt

It used because it allow you to read easy any solution during the practical in a tool

1.we use glass tools because they are transparent so it is easily to read volumes. 2.glass era unreactive to most element compare to iron and plastic.           3.glass do not get rust ,which can react with other compounds.

it is good conductor of heat that's why it is used in heating

its good we know its the best you can do

HEY LEVY I KNOW THAT YOU ARE CLEVER THANKS BY THE WAY THOUGH I JUST WANTED TO KNOW ANY STORIES

tupange

Up is the stage of improvement

who has the most correct definition of Brittle?

MALLABLE IS THE ABILITY OF METAL TO BE PRESSURISED HAMMERED OR COMPRESSED INTO THIN SHITS LIKE LATEST VEHICLE ARMORS(PRESIDENTIAL CAR ARMOR)
DUCTILE IS THE ABILITY OF A METAL TO BE STRETCHED/ELONGATED INTO WIRES LIKE STRUCTURE FRAME/FOUNDATION SUPPORTS PUT BEFORE APPLYING CEMENT
BRITTLE IS THE ABILITY OF A METAL TO BE EASILY REFORMED LIKE THE THIN METAL WIRES WE SOMETIMES USE FOR HANGING OUR CLOTHES YOU CAN BEND THEM EASILY WITH YOUR OWN HANDS

BRITTLE MEANS EASILY BROKEN

mallable is the ability of a metal to be harmed into thin sheets
ductile is the ability of a metal to be streched into wires
brittle is the ability of a metal to be unbreakable

FUEL is anything when burnt produces energy in form of heat and light
ENERGY is the capacity of doing work

Fuel is substance which produce heat and light & Energy is ability of dowing work

energy is the ability to do work while fuel is substance which when heated produces heat and light

FUEL IS A SUBSTANCE THAT PRODUCES ENERGY WHEN HEATED
AND ENERGY IS THE ABILITY TO DO WORK

MERCURY is the only liquid metal

Mrcury is a metal in liquid form

MERCURY IS ALSO AN ADHESIVE TYPE OF ELEMENT

is achemical element with symbol Hg and atomic number 80.

We are fine

Thanks for mentioning me,you too dear friend

true dat laizer

air isn't chemically combined but its physically combined

Air is a mixture and a compound because gases in it are not chemically combined and can be separated

Air is a mixture and not compound because
Gases in air can't be separated by chemical means and gases can be seen separated

hie fankie

THE ATOMIC STRUCTURE IS THE COMBINATION OF TINY PARTICLES NAMELY ELECTRONS (-CHARGE) PROTONS(+CHARGE) AND NEUTRONS( NO CHARGE) THAT FORM UP THE ATOM ITSELF EACH HAVING DIFFERENCES FROM THEIR ELECTRONIC CONFIGURATION

The basic structure of an atom includes a tiny, relatively massive nucleus, containing at least one proton and usually one or more neutrons. Outside of the nucleus are energy levels (also called shells), which contain one or more electrons.

actually hydrogen is very light compared to other gases .So hydrogen can be collected through down ward delivery or up ward displacement of air.

IT IS NOT POP SOUND THAT COLLECTS GAS BUT IT IS THE SOUND THAT TELLS YOU THAT HYDROGEN IS PRESENTLY BEING COLLECTED

well said frank

it is not possible to collect hydrogen by pop sound but it is possible to determine it by a pop sound when a glowing splint is put into it

Is unsaturated hydrocarbon which has double bond

is unsatureted hydrocarbon with double bond

Is an unsaturated hydrocarbon which has double bond

Pp

biology also improves nature

it helps to understand the environment

U can apply in many careers ,example doctot ,pharmacist and laboratory technician

U can apply in many careers ,example doctot ,pharmacist and laboratory technician

of course

mamb

I am levy I have not happy today because our president Mkapa is dead

How do you know if we are going back to school?

fractional distilation involves strongly heating of two liquids for the purpuse of separating them
but destructive distilation is the decomposition of a substance, as wood or coal, by heating with a minimal exposure to air,

Oh ,distructive distillation is used to separate liguids containing dissolved substances

How about destructive distillation?

Fractional distillation involve heating two liguid which have same or nearly boiling points

Making plastics

organic chemistry is
* used in making pvc
*used in making flouro chloro carbons

water is not added into acids becouse it may explode

I can say in this language that an acid is a water lover that's why when you add water to an acid suddenly it react forward in water

That's why we're required to ad an acid to the water but not water to an acid

Iweke vzur iyoo

Is the loss of soil fertility, and productivity

Here

hi there

let's chat guys

Yeah

organic chemistry,soil chemistry,bio chemistry,inorganic chemistry,organic chemistry

I think those are the correct one in my side[BUT YEAH]

guys what about?
biochemistry
inogarnic chemistry &
orgarnic chemistry

And what about analytical chemistry?

most reactive metals= electrolysis
moderate reactive= reduction
less reactive= chemical reactions

Reduction
Purification
Concentration
Roasting

I think...
1)Mining and crashing
2)concentration of the ores
3)Roasting or calcination
4)reduction of oxides from metals
5)purification of metals

true on what henry macharia has talked about

correct

Bonding is when two or more atoms combine chemically and an attractive force exists btn the atoms
Nomenclature is the naming system of organic compounds