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3 years ago

Is a scalene triangle a right triangle

Chemistry

1 answer:

anygoal [31]3 years ago

8 0

A scalene triangle can be a right triangle, depending on if one side of the triangle is equal to 90 degrees.

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In Part A, you found the amount of product (1.80 mol P2O5 ) formed from the given amount of phosphorus and excess oxygen. In Par

Finger [1]

First step is to balance the reaction equation. Hence we get P4 + 5 O2 => 2 P2O5

Second, we calculate the amounts we start with

P4: 112 g = 112 g/ 124 g/mol – 0.903 mol

O2: 112 g = 112 g / 32 g/mol = 3.5 mol

Lastly, we calculate the amount of P2O5 produced.

2.5 mol of O2 will react with 0.7 mol of P2O5 to produce 1.4 mol of P2O5.

This is 1.4 * (31*2 + 16*5) = 198.8 g

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3 years ago

Water boils at 100Â°C at sea level. If the water in this experiment did not boil at 100Â°C, what could be the reason?

slavikrds [6]

The water isn’t at sea level

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3 years ago

Read 2 more answers

The rate law for a reaction is rate=k[A][B] Which one of the following statements is false? The rate law for a reaction is Which

Andrews [41]

Answer: The reaction is first order overall.

Explanation: Rate law says that rate of a reaction is directly proportional to the concentration of the reactants each raised to a stoichiometric coefficient determined experimentally called as order.

$Rate=k[A]^x[B]^y$

k= rate constant

For the given rate law:

$Rate=k[A]^1[B]^1$

x = 1= order with respect to A

y =1= order with respect to B

n =( x+y)= (1+1) = 2 = Total order

a) If [A] is doubled, the reaction rate will increase by a factor of 2: True

$Rate'=k[2A]^1[B]^1$

$Rate'=k[2]^1[A]^1[B]^1$

$Rate'=[2]^1\times Rate$

$Rate'=[2]\times Rate$

b) The reaction is first order overall: False

The overall order is 1+1= 2.

c) k is the reaction rate constant: True

$Rate=k[A]^x[B]^y$

k= rate constant

d) The reaction is first order in [B]: True

For the given rate law:

$Rate=k[A]^1[B]^1$

x = 1= order with respect to A

e) The reaction is first order in [A]: True

For the given rate law:

$Rate=k[A]^1[B]^1$

y =1= order with respect to B

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3 years ago

Which of the following uses mechanical energy to function?

lisabon 2012 [21]

The answer is D.windmill

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3 years ago

the ability of an ion depends upon its charge density comment on the statement what is essential difference between hydration an

Butoxors [25]

The statement that an ability of ion depends on its charge density can be understood by its relation to its definition where charge density refers to the ratio of charge of ions to its volume.

The main difference between hydrolysis and hydration is that hydrolysis includes the split of a water molecule whereas hydration does not always include the split of a water molecule.

<u>Explanation</u>:

Their relation is that if, greater the charge density greater will be the ability of ion for reaction/reacting.

If Sodium ion (Na+) and Magnesium ion (Mg2+). They both contain 10 electrons, i.e. in the ratio (2,8). But, the number( no.) of protons in both ions is different. In the case of ion ( sodium), there are 11 protons present in its nucleus while in the case of ion (magnesium ) there are 12 protons present in its nucleus.

A chemical process in which a molecule is separated into two parts by the addition of a molecule of water is known as Hydrolysis. A reaction in which an attachment of hydrogen and hydroxyl ion takes place to a carbon in a carbon double bond is known as Hydration.

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3 years ago