3 years ago

Relate metallic bonds to the properties of metals.

1 answer:

8 0

Metallic bonds can conduct electricity. It depends on what type of metal you use because everything has a different chemical make up and different bond. Metallic bonds make it easy for some metals to be ductile meaning that they can be stretched into thin wires and they can also be malleable which means they can be pound into thin sheets. Also certain atoms will react with water to make rust.

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What is the amount in grams of EDTA needed to make 315.1 mL of a 0.05 M EDTA solution. The molar mass of EDTA is 374 g/mol

statuscvo [17]

Answer:

58.92 g EDTA

Explanation:

315.1 mL = .3151 L

M = Moles / Liter

.3151 L x <u>0.5 mol EDTA</u> x <u>374 g EDTA</u> = 58.92 g EDTA

1 L EDTA 1 mol EDTA

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1 year ago

For which of the following reactions is ΔH∘rxn equal to ΔH∘f of the product(s)?

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2 years ago

2.50 g of Zn is added to 5.00 g of HCl

Debora [2.8K]

Zn+2HCl ----> 2ZnCl2 + H2

For 2.50 g of Zn

Mass per mol = 2.50/molar mass of Zn = 2.50/65.38 = 0.0382 g/mol
There are two moles of ZnCl2 and total mass = 2*0.0382*molar mass of ZnCl2 = 2*0.0382*136.286 = 10.42 g

For 2 g of HCl

Mass per mol = 2/2*molar mass of HCl = 2/ (2*36.46) = 0.0274 g/mol
For the two moles of ZnCl2, mass produced = 2*0.0274*136.286 = 7.48 g

It can be noted that 2 g of HCl produced less amount of ZnCl and thus it is the limiting reagent.

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2 years ago

Which phase change results in atoms with the highest kinetic energy? A. Boiling B. Melting C. Freezing D. Condensing

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Answer: Boiling because it makes the molecules in water bounce around.

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A report was created that outlined the outbreak of a disease called fungal meningitis among patients who received contaminated s

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the centers for disease control and prevention

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