IV. Tell whether if the following is an example of homogeneous mixture or heterogeneous mixture. Write HO or HE. 41. sea water 42. alcohol 36. acid rain 37. perfume 38. fruit salad 39. sinigang 40. air 43. halu-halo 44. mixed nuts 45. vinegar V. Which is a metal element? a. Fluorine c. Sodium 46. b. Astatine d. Boron а. Сopper c. Silicon b. Germanium d. Neon 47. Which is a non-metal element? a. Calcium c. Arsenic 48. b. Barium d. Magnesium a. Bromine c. Potassium b. Tungsten d. Barium 49. Which is a metalloid element? 50. a. Lead c. Uranium b. Polonium d. Zinc

Q: Which highlighted bond requires the highest energy to break? Lowest? In between? Answer these questi...

A:

Q: Draw the Lewis Dot Symbol of the following atoms or ions. 1. Radium 2. Selenium 3. Gallium

A:

Q: Determine the concentration of zinc hydroxide in: a. Pure water: b. 0.025 M sodium hydroxide: c. 0...

A: Ksp of Zn(OH)2 = 5.0×10-17  Concentration of Zn(OH)2 = ?

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Q: the complete, balanced reaction that occurs when manganese (II) nitrate is mixed with sodium carbona...

A: Mg(NO3)2(aq) + Na2CO3(aq) -->  

Q: 1. Br2, FeBrg 2. HNO3, H2SO4 3. Sn, HCI 4. NaOH, H2O 5. NaNO2, HCI 6. HBF4, A

A: The reaction given is,

Q: For the central atom in each formula, draw the Lewis Structure with all valence electrons shown.   ...

A: For the central atom in each formula, draw the Lewis Structure with all valence electrons shown ---

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A: Since you have asked multiple questions, we will solve the first question for you. If you want any s...

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Q: 1. For substances that will be in thermal contact, how would we know which will absorb energy (heat)...

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Q: 500. mL of a solution of calcium hydroxide at 45 °C contains 104.5mg of the salt. Determine the solu...

A: Given- Volume b= 500 ml =0.500 L (1L = 1000 ml) Weight = 104.5 mg = 0.1045 gm (1 gm = 1000 mg)  

Q: Lewis Dot Formulas for atoms: display the __________ electrons as dots around the chemical symbol.

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A: 10 examples are given

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Q: Calculate the pH of a 0.10 M solution of NaOH. Express your answer numerically using two decimal pla...

A:   B★  Answer : The pH of a 0.10 M solution of NaOH is 13. 

Q: 1. Write oxidation half-reactions for the metals Ag, Cu and Zn. Ag: Cu: Zn:

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Q: Milk of magnesia is a suspension of magnesium hydroxide in water. Although Mg(OH)2 is relatively ins...

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Q: True or false 1.The enthalpy change is the heat evolved or absorbed during a reaction happening at c...

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A:

Q: 8+83= %3D Oxygen Carbon %3D

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Q: ch compound: (a) CH2(COOB

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Q: From each pair below (attached image), select the molecule that will display stronger intermolecular...

A: The pairs given are,  

Q: Calculate the pH of 1.00 L of a 0.497 M hydrocyanic acid solution before and after the addition of 0...

A: As per bartleby guidelines I answered only first question so please don't mind.Thanks in advance. 

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Q: What is the vapor pressure of water at 30.0 °C?

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Q: buffer solution contains 0.448 M NH4Cl and 0.319 M NH3 (ammonia). Determine the pH change when 0.092...

A: Given-> Molarity of NH4Cl= 0.448 M Molarity of NH3 = 0.319M Moles of KOH = 0.092 mole  Volume of ...

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Q: 58. The number of hydrogen atoms present in 25.6 g of sucrose (C12H2201), which has a molar mass of ...

A: Detail mathematical calculation for determining number of atoms of hydrogen is given below

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A: ->We can identify stronger acid if the conjugate base is more  stablized. And conjugate base is f...

Q: For substances that will be in thermal contact, how would we know which will absorb energy (heat), a...

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Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".