Last question anyone??
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Answer:
3=8908-=698=49=304=+74950=405=0381=01=20
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Explanation:
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The equation below shows the incomplete combustion of ethene.C2H4 + O2 → CO2 + H2O If 2.70 mol C2H4 is reacted with 6.30 mol O2 identify the limiting reagent
Select all of the characteristics that define matter. A.) Matter has mass. B.)Matter has volume (takes up space). C.)Atoms and compounds are made out of matter. D.) All matter has the same density.
Susana heats up a sample of red crystals. While the sample is being heated, a gas is released and a blue powder is left after the heating. Is the sample of red crystals an element or a compound? Explain your answer.
Which term describes this diagram? A.trophic levelB.food webC.food chainD.matter cycle
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Proteins catalyze reactions, part of the immune system, transport molecules such as oxygen, and transmit messages from cell to cell.
What is protein?
Proteins are very large molecules made of basic units known as aminoacids. Proteins consist of carbon (C), hydrogen (H), nitrogen (N), oxygen (O), and sulfur (S).
Protein molecules are produced by twisted and folded strands of amino acids. Proteins are actively involved in the most important as well as basic aspects of life. These include metabolism, cellular communication, movement, molecular recognition, and defense.
The shape of structural proteins allows them to form essential structures of the body. Collagen holds most of the body tissues together, a protein with a fiber shape. Structural protein Keratin creates a network of waterproof fibers on the outer layer of the skin.
The shape of functional proteins enables them to contribute to the chemical processes of the body. Functional proteins include cell membrane receptors, hormones, growth factors, and enzymes.
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Valuable ore deposits and gem crystals are often associated with _____. a. oceans b.oil deposits c. thin crustal areas d. igneous intrusions Which of the following shows a possible sequence that leads to the formation of sedimentary rocks? a. squeezing, heating, bending, folding b. rising, weathering, erosion c. weathering deposition, compaction, cementation d. melting, cooling, crystallization PLZ HELP!! :)
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Valuable ore deposits and gem crystals are often associated with igneous intrusions. So for this question the correct option is option “d”. An example like the Pegmatite’s, which are a form of igneous intrusions, is responsible for the creation of variety of gems like topaz and tourmaline.
For the second question:
For this specific question, option “c” seems to be the correct option. Weathering, deposition, compaction, cementation are the possible sequence that leads to the formation of sedimentary rocks.
Valuable ore deposits and gem crystals are often associated with igneous intrusions and The possible sequence that leads to the formation of sedimentary rocks is weathering, deposition, compaction, cementation. Thus, the correct options are option D and C.
Sedimentary rocks are types of rocks that are formed through the accumulation and lithification (compaction and cementation) of sediment particles. Sediments can include fragments of rocks, minerals, organic material, and other debris that are transported and deposited by water, wind, ice, or gravity.
Over time, these sediments undergo compaction and cementation processes, where the particles are pressed together and bound by minerals, creating solid rock formations. Sedimentary rocks often exhibit distinct layers or stratification, and they can contain fossils and provide valuable information about Earth's history and past environments.
Examples of sedimentary rocks include sandstone, limestone, shale, and conglomerate.
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O A. lonic
B. Metallic
OC. Macromolecular
D. Chemical
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The correct answer is option B. Metallic.
What explains the structure of metals and delocalized electrons?
Metal is composed of a huge structure of atoms arranged in a regular pattern. Electrons from the outer shell of a metal atom are delocalized and can move freely throughout the structure. This sharing of delocalized electrons results in strong metal bonds.
Metallic bonds are electrostatic attraction between metal cations and the negatively charged ocean of delocalized electrons. The sea of delocalized electrons contains only valence electrons, not core electrons.
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B.metallic is the answer hope this helped