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3 years ago

5

Angelo wants to develop a new series of pots and pans for use in cooking. Which property of metals should he be most concerned a

bout?
A) conductivity
B) ductility
C) luster
D) malleability

1 answer:

snow_lady [41]3 years ago

5 0

Answer:

conductivity

Explanation:

firstly when you buy a cooking pot you will place it on a fire so that make it conduct heat

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What is the acceleration of the object’s motion? 0.5 m/s2 -0.5 m/s2 2 m/s2 -2 m/s2

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Answer: -2m/s2

Explanation:

Using the following equation ; acceleration = Change in velocity / time

i.e a = v - u / t

where 'a' = acceleration

v = final velocity

u = initial velocity

t = time

Therefore; from the graph we have acceleration to be, 0 - 6m/s / 3s = -2m/s2

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A solution at 25 degrees Celsius is 1.0 × 10–5 M H3O+. What is the concentration of OH– in this solution? 1.0 × 10–5 M OH– 1.0 ×

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Answer:

1.0 × 10⁻⁹ M.

Explanation:

<em>∵ [H₃O⁺][OH⁻] = 10⁻¹⁴.</em>

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<em>∴ [OH⁻] = 10⁻¹⁴/[H₃O⁺]</em> = 10⁻¹⁴/(1.0 x 10⁻⁵ M) = <em>1.0 × 10⁻⁹ M.</em>

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3 years ago

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Which of these solutes raises the boiling point of water the most?

lubasha [3.4K]

(E) ionic aluminum fluoride (AlF3)

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3 years ago

Is lithium a metal metalloid or non metal

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Answer:

Metal

Explanation:

Lithium (Li), chemical element of Group 1 (Ia) in the periodic table, the alkali metal group, lightest of the solid elements. The metal itself—which is soft, white, and lustrous—and several of its alloys and compounds are produced on an industrial scale.

Atomic number: 3

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4 years ago

A combustion reaction occurs between one molecule of methane (CHa) and two molecules of oxygen (O2).

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The total number of atoms make up the products :

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<h3>Further explanation </h3>

Complete combustion of Hydrocarbons with Oxygen will produce CO₂ and H₂O compounds.

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Hydrocarbon combustion reactions (especially alkanes)

For combustion of methane (CH₄) and two molecules of oxygen (O₂).

$\tt CH_4+2O_2\rightarrow CO_2+2H_2O$

The number of atoms make up the products

CO₂ : 1 carbon, 2 oxygen

2H₂O : 4 hydrogen , 2 oxygen

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3 years ago