Answer:
3.785411784
Explanation:1 gallon (gal) = 3.785411784 kilogram (kg). Gallon (gal) is a unit of Volume used in Standard system. Kilogram (kg) is a unit of Weight used in Metric system. Please note this is volume to weight conversion, this conversion is valid only for pure water at temperature 4 °C.
US oz = 28.349523125 g
US fl oz = 29.5735295625 ml (milliliters) = 29.5735295625 g (grams) of pure water at temperature 4 °C.
US cup = 8 fl oz = 236.5882365 ml (milliliters) = 236.5882365 g (grams) of pure water at temperature 4 °C.
The US gallon is equal to 3.785411784 liters and defined as 231 cubic inches. Kilograms also can be marked as kilogrammes in UK.
Fossil fuel is a collective term for buried, combustible deposits or organic materials formed from decayed plants and animals over millions of years ago that had been converted to different substances such as crude oil, coal, natural gas or heavy oils through heat and pressure exposure. They are sometimes known as mineral fuels.
The steps of fossil fuel formation are:
1. The plant uses energy found from its environment to form sugars and carbohydrates.
2. ANIMAL DEATH- for a fossil to form, an animal must die either in water or die out of the water. Water plays a vital role in the fossil formation because it helps in the preservation of the dead organism long enough for it to form.
3. BACTERIAL CONSUMPTION- bacteria eats away the soft parts and leaves the hard part such as the exoskeleton or bones. This hard body parts that are inherently resistant to bacterial erosion are the ones that forms into fossil.
4. SEDIMENTATION- this is the settling of dirt, dust or mud over these remains layer upon layer accumulate through the years
5. PERMINERALIZATION- layers of decomposed plants and animals are buried deep down the earth that they are squelched by the enormous mass of the earth creating intense heat and pressure.
6. After millions of years of heat and pressure, these buried materials transforms into chemicals known as hydrocarbons
7. These so called HYDROCARBONS can either be solid, liquid or gas. The solid form is known as coal. The liquefied form is the petroleum or crude oil. Lastly, the natural gas is the gaseous form.
Answer:
e. do both (a) and (b).
Explanation:
Covalent bond
This is another type of chemical bond, through which atoms can also have 8 electrons at their last energy level, and thus comply with the law of the octet.
The covalent bond is defined as the union of non-metal atoms to share their valence electrons, by means of electromagnetic attractive forces, mainly; Here atoms do not gain or lose their electrons, but share them in quantities of one, two, three and even four in various situations. The last electron layer of the atoms that bind together is intertwined or overlapping, forming the true molecules, contrary to what happens in the ionic bonds, in which the united atoms only approach each other to form true aggregates, instead of true molecules. In general, atoms of organic substances have this type of bond and, in addition, it is very common among atoms of the same class or species (Chlorine with Chlorine, Oxygen with Oxygen, Carbon with Carbon)
