Powdered sulfur and iron filings are mixed together. What physical property could you use to separate them?
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What term is being defined below? the total amount of greenhouse gases produced by individuals or other entities in a given time perioda. global warming b. ozone depletion c. carbon footprint d. reef destruction
How many nitrogen atoms are present in calcium nitrate, Ca(NO3)2? A) 6. B) 3. C) 2. D) 1
You dissolve 0.74 g of potassium chloride (KCl) in 500 mL of water. What is the molarity of the solution?
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The CCl₄ molecule has a tetrahedral geometry. It is a symmetrical molecule. The polarised bond thus cancels out each other due to the geometry of the molecule and that is why CCl₄is nonpolar.
Chlorine has a higher electronegativity than phosphorous. As a result, the chlorine atom has a partial negative charge relative to phosphorous. Since all three chlorine atoms pull electrons from the phosphate atom, the molecule is a polar molecule.
The reason why CCl₄is not soluble in water is because it is not soluble in polar solvents. Both PCl₃ and water are polar molecules. This is due to their shape and the electronegativity difference between the H and O molecules in water and the P and Cl molecules in PCl₃. Therefore, PCl₃in water is soluble.
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In CCl4, the carbon molecule forms four bonds; one for each chlorine atom. Each bond contains 2 electrons, so it is satisfied.
In PCl3, Phosphorous forms only 3 bonds with chlorine, which means in order to have 8 valence electrons, it also has a lone pair of electrons, not bonded with chlorine.
Now, in CCl4, picture the shape of the molecule like a plus sign, with the carbon in the middle and the chlorine at the four ends. It is symmetrical, and therefore is nonpolar.
In PCl3, the lone pair electrons push, so to speak, the 3 chlorine atoms away, making a T-shaped molecule. Since the chlorine is more electronegative than carbon, the molecule is unbalenced, making it polar.
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Answer:
C6H12O6 + 6O2 → 6CO2 + 6H2O.
Explanation:
Answer:
please see below
Explanation:
the chemical formula of glucose is C6H12O6
(2) NaOH(aq) + HCl(aq) -->NaCl(aq) + H2O(l) + heat
(3) H2O(l) + heat --> H2O(g)
(4) H2O(l) + HCl(g) -->H3O+(aq) + Cl-(aq) + heat
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The equation where the term heat represents the heat of fusion is NaCl(s) + heat -->NaCl(l).
The heat of fusion is the heat required to break the intermolecular interactions in a solid as it is converted to the liquid. Hence, the process of fusion is the process of converting a solid into a liquid.
Examining the equations shown in the options closely, we will discover that in the equation; NaCl(s) + heat -->NaCl(l), heat is supplied to sodium chloride solid and it is converted to liquid. The heat involved in this process is the heat of fusion.
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Answer:
The answer is 1
Explanation:
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D is the correct process to convert 36 yds to centimetres 2.54 cm = 1 in.
What are centimetres?
A metric unit of length, equal to one-hundredth of a metre.
To convert a yard measurement to a centimetre measurement, multiply the length by the conversion ratio. The length in centimeters is equal to the yards multiplied by 91.44.
D is the correct process to convert 36 yds to centimetres 2.54 cm = 1 in.
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Answer:
D
Explanation:
A P E X
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Answer:
The correct answer is option A) Oxidation
Final answer:
The release of energy through the removal of hydrogen from a molecule is referred to as oxidation. In this process, energy is often released which can be utilized by cells for different functions.
Explanation:
The release of energy from a molecule by the removal of hydrogen is known as A) Oxidation. In biochemical reactions, oxidation refers to the process in which electrons are removed from a molecule, usually by removing a hydrogen atom (which consists of one proton and one electron). This process often releases energy that can be used by cells for various functions. Thus, through oxidation, molecules such as carbohydrates or fats can be broken down to release energy used for cellular activities.
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