Describe the chem.prop. of carbon and its

Carbon and carbon compound gives carbon dioxide vapor heat and light on burning in air C+O₂+Co₂+heat light.CH₄+2O₂+CO₂+H₂O Heat+Light CH3H2OH+O₂+CO₂+H₂O Heat+Light

Carbon exists in two allotropic form (1) cristalive (2)amorphous the cristall the form are diamond and graphit hereas the amorphus forms are coal,charcoal camp black.

Explain two occurences of nitrogen oxides in the atmosphere.

NOx is a generic term for the mono nitrogen oxides NOand NO2.they are produced from the reaction among nitroge,oxygen and even hydrocarbons especially at high temperature.in areas of high motor vehicle traffic such as in large cities the amount of nitrogen oxides emmited into the atmosphere as air pollution can be significant NOx gases are formed whenever combustion occurs into presence of nitrogen as in an air breath engine they also are prodused naturaling by lightning In atmospheric chemistry the term means the total concentration of smog NOand NO2 NOx gaces react to form smog and acid rain as nell as being central to the formation oof troposphere stone.

Describe the sulfur cycle

Sulfur in an element important to ecosystem and the climate.The majority of sulfur is stored underground for example under the ocean or in rocks. It also occurs naturally in places like swaps and volcanoes.humans add ed cess sulfur into this cycle ussualy through atmospheric pollution caused by fosgil full combustion steps of the sulfur cycle.

Describe the sulfur dioxide problem

Sulfur dioxide affects human health when its breathed in. it irritates the rose throw and airway to cause coughing wreeting shortness of breath or a tight felling around the ehest.the effects of sulfur dioxide are felt very quickly and most people waud fell the worst symptoms in 10 or 15 minutes after breathing it in. those most at risk of developing problems if they are exposed to sulfur dioxide are with asthme or similar conditions.

Describe the water cycle in the nature

The water cycle is the cycle that water goes through on earth. Water is essential for life as we know it. Its present throughout the solar system and was part of the earth from its formation. The source of water was the same as the source of the earths rock the cloud of particle which condensed in the origin of the solar system.first water on the surface of the eath evaporates.then water collect as water vapor in the sky.this makes clouds.next the water in the clouds yets cold this makes it become liquid again this process is called condensation.

Major elements in the earth crust

They are oxygen Si Al I Ca Na K Mg given the abundance of oxygen and silicon in the crust it shouldn’t surprising that the most abundant mineral in the earths crust.The elemental composition of the human body and life in general is quite different.

Major elements found in the living matter

The six most commonly found elements in living things are carbon hydrogen nitrogen oxygen phosphorus and sulfur. These elements make up the bulk of organic material how ever only about 25 elements are necessary for life.

 

Write the symbols

Metal-Na,K,Zn,Ca,Li. Na-sodium K-potassium Zn-zink. Ca-calcium Li-lithium

Nonmetal-O₂,C,P,F N-nitrogen O-oxigen C-carbon P-phosporus F-fluorine

Metalloid -B,Si,:Boron,Silicon,As-Arsenic,Te- Tellurium,At-Astatine

 

2)…Alkali metals … Oxides, Hydroxide, Salts

Oxides- Li₂O-lithium oxide,K₂O-potassium oxide,Rb₂o-Rubidium oxide,Cs₂O-Caesium oxide,

Na₂O-Sodium oxide

Hydroxide -LiOH- lithium hydroxid,NaOH- Sodium hydroxid,KOH- potassium hydroxid,

RbOH—Rubidium hydroxid,CsOH- Caesium hydroxid.

Salts- NaCl- Sodium chloride,KCl- potassium chloride,Cu(PO₄)-Coppex diphasphat,

KMnO₄-Potassium permanganate,CuSO₄-Copper sulfate