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"Chemistry can be broadly defined as the study of matter and the changes that it undergoes. In Chemistry there are several different branches including organic chemistry, inorganic chemistry, physical ...
"Carbohydrates are macromolecules composed of carbon, hydrogen and oxygen. Biologists are interested in carbohydrates because they serve as energy storage and as structural frameworks within cells. Si ...
"Physical matter properties include color, odor, density, melting point, boiling point and hardness. Physical properties are divided into intensive and extensive properties. Intensive properties are u ...
Video Física
"The photoelectric effect is a tool that we use to determine how much energy electrons have. The photoelectric effect was explained by Albert Einstein in 1905 and states that when light shines on meta ...
Video Física
"Changes in matter can be classified as either physical or chemical, like matter properties. Physical changes include changes in physical appearance but not composition. All changes in state of matter ...
There are several types of cellular energy production. Plants produce energy from light through a process known as photosynthesis. Eukaryotic cells use their mitochondria to generate ATP through a pro ...
Video Química
"The p-block elements are found on the right side of the periodic table. They include the boron, carbon, nitrogen, oxygen and florine families in addition to the noble gases. The noble gases have full ...
Video Química
"The Oxygen family, sometimes also known as chalcogens, is group 16 on the periodic table and consisted of oxygen, sulfur, selenium, tellurium, polonium and ununhexium. The elements in this group show ...
Video Química
"Boyle’s Law states that volume of a given amount of gas held at a constant temperature varies inversely the with pressure. The relationship between pressure and volume of Boyle’s Law is expressed in ...
"The Nitrogen family, the Carbon family and the Boron family are found in the p-block of the Periodic Table. The Nitrogen family is group 13, while the Carbon family is group 14 and the Boron family i ...
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