May 10, 2018 at 3:21 pm

You Rode in hydrocarbon-fueled vehicles. The changes occurring naturally and synthetically are just to numerous to mention.

May 10, 2018 at 3:09 pm

The digestion of food involves a complex series of chemical changes. Chemical reactions are involved in our brains. Several chemical changes allow your eyes to scan this page and your brain cells to translate these words into thoughts. Oftentimes, we change matter to make it more useful. Chemists and chemical engineers take the raw stuff of the earth-minerals,water,air,plants or animal materials,crude oil,and energy-and transform them into materials we use in daily life.consider some of the materials with which you were in contact this morning. The water in whici you bathe was chemically treated before reaching the pipes. The soap,shampoo,and toothpaste you used look very different from the raw materials(oil and minerals)from which they were manufactured in various ways. Your drinks were in plastic-lined cardboard cartons or in plastic bottles. You carry some books and notebooks-processed cellulose and plastic and electronically printed with ink.

May 10, 2018 at 2:57 pm

As you live each day,many chemical processes take place tithin your body. The digestion of food involves a complex series of chemical changes. Chemical reactions are involved in our brains. Several chemical changes allow your eyes to scan this page and your brain cells to translate these words into thoughts. Oftentimes, we change matter to make it more useful. Chemists and chemical engineers take the raw stuff of the earth-minerals,water,air,plants or animal materials,crude oil,and energy-and transform them into materials we use in daily life.

May 10, 2018 at 8:47 am

Lets take s0me science review it would be a greet study to discuss.

May 9, 2018 at 7:43 am

There is asystem for naming acids and salts.this is den0ted by the prefixes and suffixes added to the r0ot w0rd of the name of the main n0nmetalic element present.

May 7, 2018 at 12:44 pm

These are all homogeneous. Are there homogeneous mixtures? You will find out as you proceed in your study of matter. When some substances are mixed, the different phases may still be identified. Each distinct phase is homogeneous. A system is heterogeneous when it has nonuniform appearance and different phases can be recognized. This means when the system ir divided into several porti0ns, different portions will have different appearance and different c0mpositi0n.

May 7, 2018 at 9:00 am

If you have s0me informati0n about c0mpound you can add it on her.

May 7, 2018 at 8:07 am

i made a research its big big scam are a owner or just ordinary human who want m0ney for daily life? Before i sign up i read first at go0gle .its a big scam.

May 3, 2018 at 9:32 am

Other chemical products discoverd accidentally included perkin’s dye. Schoenbein’s enplosives,and baekeland’s plastics.these accidetal discoveries,however,cannot be attributed to sheer luck. These people were able to immediately relate their chance observations of possible applications to a given problem because their minds were prepared. They made careful obsesvations and asked questions. They were also very patient,spending long hours at work. Other gifted people arrive at conclusions or discoveries in science by using their intuition or intelligence. One such man was Albert Einstein. He formulated the relationship between matter and energy by exercise of the mind alone. Others apply trial and error method. Thomas Edison tried many materials as filament for his first light bulb before he succeeded.

April 30, 2018 at 6:41 am

Sxnthetic fabrics are str0ng,lightweight,waterproof,and free from attacks of molds and m0nths.they are unlike natural fabrics such as c0tt0n ,silk,and linen.nyl0n fibers are extensively used in stockings,umbrellas and raincoats,sails,tents,backpacks,parachutes,sportswear and sports equipment,and carpets.

April 30, 2018 at 6:11 am

Bulletproof vest and helmets are made of polymers.
windshields of vehicles are made of glass sheets.laminated with clear plastics.when shattered,the plastic holds the glass fragments which can injure those inside the vehicle.bulletpro0f glass in vehicles is made of alternating layers of glass and clear plastic.str0ng,lightweight,and thin hulls for rachng boats are also made of plastics.industrial and surgical gloves are lined with thin plastics that resist cuts by a sharp knife or a scalpel.

April 30, 2018 at 4:54 am

Ask your grandparents if they had used plastic bags and other plasticware when they were your age.suggest solutions to the big polluti0n problem caused by plastics.
The chemistry of polymers has greatly advanced.it is n0w possible for chemists to design polymers with different sets of properties to suit a wide range of useful products.

April 30, 2018 at 4:28 am

Plastics and other polymers.there are naturally occurring and sxnthetically manufactured polymerr.important natural polymers include proteins and carbohydrates.proteins,minus water,comprise about 50% of the bodies of animals.likewise,carbohydrates in the form of cellulose make up the woody structure of plants.carbohydrates include sugars,glycogen,starches,dextrin,and gums. The l0ng use of natural polymers since 3500 years ago is seen in woven lines found in tobs in egypt.linens come from the fibers of the stem of flax plant.shellac,a resin obtained fr0m the lac insect.is an0ther example of natural polymer.in addition,finger/toenails,h0rn and tusks,hair,fur,wo0l.feathers,silk and leather are polymers.

April 30, 2018 at 4:05 am

Concerns of chemistry are:
*The composition and properties of matter
*the changes that substance undergo
*the energy transformations that accompany the changes

April 30, 2018 at 3:22 am

Its true we can use guava leaves as a herbal medicine.also the garlic its help to prevent cholester0l.