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2 years ago

Identify the type of reaction shown by this chemical equation:2AI + 6HCI - 2AlCl3 + 3H2

Chemistry

1 answer:

ArbitrLikvidat [17]2 years ago

5 0

Answer:

Single displacement reaction

Explanation:

2AI + 6HCI —> 2AlCl3 + 3H2

From the above reaction, we see clearly that Al displaces H from HCl. This is clearly a single displacement reaction.

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one bottle of aspirin holds 250 tablets, each containing 150 mg of aspirin and sells for $2.95. Another bottle holds 125 tablets

AlladinOne [14]

I bottle:

250 * 150mg = 37500mg

If 37500mg ------- cost ------- $2.95
so 1mg ------- cost ------- x

x = 1mg* $2.95 / 37500mg = $7,87*10⁻⁵

II bottle

125 * 200mg = 25000mg

If 25000mg ---------- cost ---------- $3.50
so 1mg ---------- cost ---------- x

x = 1mg* $3.50 / 25000mg = $0,00014=$1,4*10⁻⁴

$7,87*10⁻⁵ < $1,4*10⁻⁴

1st bottle is better bargain cause 1mg of aspirin its cheaper than in 2nd.

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2 years ago

N76 [4]

Answer:

Explanation:

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2 years ago

Consider the equilibrium reaction and its equilibrium constant expression. Br 2 ( g ) + 2 NO ( g ) − ⇀ ↽ − 2 NOBr ( g ) K = [ NO

zavuch27 [327]

Answer:

$K_2=\frac{[NOBr]^4_{eq}}{[NO]^4_{eq}[Br]^2_{eq}}$

Explanation:

Hello,

In this case, for the equilibrium condition, the equilibrium constant is defined via the law of mass action, which states that the division between the concentrations of the products over the concentration of the reactants at equilibrium equals the equilibrium constant, for the given reaction:

$2 Br_2 ( g ) + 4 NO ( g ) \rightleftharpoons 4NOBr ( g )$

The suitable equilibrium constant turns out:

$K_2=\frac{[NOBr]^4_{eq}}{[NO]^4_{eq}[Br]^2_{eq}}$

Or in terms of the initial equilibrium constant:

$K_2=K_1^2$

Since the second reaction is a doubled version of the first one.

Best regards.

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3 years ago

To calculate the freezing point depression ___ solution's freezing point and the freezing point of it's pure solvent.

murzikaleks [220]

I'm sure that to calculate the freezing point depression subtract solution's freezing point and the freezing point of it's pure solvent. According to the formula.

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QUESTION 10

iris [78.8K]

Answer:

Explanation:

Phosphofructokinase-1

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2 years ago

Identify the type of reaction shown by this chemical equation:2AI + 6HCI - 2AlCl3 + 3H2​

Identify the type of reaction shown by this chemical equation:2AI + 6HCI - 2AlCl3 + 3H2