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nataly862011 [7]
3 years ago
5

A redox reaction always involves

Chemistry
1 answer:
Sonbull [250]3 years ago
3 0

Answer:a

Explanation:

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Glass has a specific heat of 0.16 calories/gram°C.
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Calories heat added = Mass of glass times temp. increase times specific heat of glass

calories (small calories) = l.0 g x 20 degrees x .16 calories/gm/degree C = 3.2 calories
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Kate gathered three boxes of the same size made of different materials: glass, clear plastic, and aluminum painted black. She pl
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<h2>Answer:</h2>

Correct option is B.

B. To relate the type of box material to the warmth of air within the box.

<h2>Explanation:</h2>

Kate gathered three boxes of the same size made of different materials: glass, clear plastic, and aluminum painted black. She placed them on a window sill in the sun for an hour and then measured the warmth of the air in each box. She actually did this to relate the type of box material to the warmth of air within the box.

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4 years ago
Is decay pool or flux
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2 years ago
all of the following electromagnetic waves possess high energy that will damage the human body if overexposed, except _____. ult
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Can I get a brainliest, please?
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4 years ago
In the following net ionic equation, identify each reactant as either a Bronsted-Lowry acid or a Bronsted-Lowry base. HCN(aq) H2
vfiekz [6]

Answer:

Explanation:

The definition of acids and bases by Arrhenius Theory  was modified and extended by  Bronsted-Lowry.

Bronsted-Lowry defined acid as a molecule or ion which donates a proton while a base is a molecule or ions that accepts the proton. This definition can be extended to include acid -base titrations in non-aqueous solutions.

In this theory, the reaction of an acid with a base constitutes a transfer of a proton from the acid to the base.

From the given information:

\mathsf{HCN _{(aq)} + H_2O_{(l)} \to CN^{-}_{(aq)} + H_3O_{(aq)}}

From above:

We will see that HCN releases an H⁺ ion, thus it is a Bronsted-Lowry acid

H_2O accepts the H⁺ ion ,thus it is a Bronsted-Lowry base.

The formula of the reactant that acts as a proton donor is <u>HCN</u>

The formula of the reactant that acts as a proton acceptor is <u>H2O</u>

8 0
3 years ago
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