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Makovka662 [10]
3 years ago
7

I NEED HELPPPPPP ASAPPPPPPPPPPPP

Chemistry
1 answer:
Mama L [17]3 years ago
7 0
I can’t read ? This what does it say
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The atomic size of zirconium is smaller than
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b

Explanation:

because hahamaskdjdjskskskskkssksksks

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3 years ago
How many moles of O2 are needed to react completely with 35.0 mol of
klasskru [66]

Answer:

I think your question is incorrect

Explanation:

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3 years ago
Jacob eats a snack, and then plays basketball with his friends. When he shoots the basketball at the hoop, he is changing _____.
olchik [2.2K]
A because it requires energy from food to move which is mechanical
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3 years ago
rank the group 1a elements tested in order of increasing energy emission when electrons returns to the ground state. explain thi
labwork [276]

<em>Answer:</em>

  • The increasing order of energy emission is as follow
  •                               Li < Na < K < Rb < Cs

<em>Explanation:</em>

  • The Characteristic colors of alkali metals are
  •                   Li-crimson<em> red</em>
  •                   Na- golden<em> yellow</em>
  •                    K- pale <em>violet</em>
  •                    Rb and Cs- <em>violet</em>
  1. These flame color show that when we moved from down the group, the wavelength decreases (frequency increases).
  2. As the color of Li is red that shows ,it has less emission energy as compare to Rb and Cs that have color violet (more emission energy).
3 0
3 years ago
g Tom's roommate Bob spilled crystal violet solution on his lab coat, and Tom offers to use some lye (sodium hydroxide solution)
irina [24]

Answer:

Tom is correct. The rate of reaction of Crystal violet and NaOH is first order with respect to NaOH, hence, a higher concentration of NaOH corresponds to a higher rate of reaction; a faster reaction.

This means the speed of cleaning depends on the concentration of the lye used.

Explanation:

The reaction between Crystal violet and NaOH, represented as

CV⁺ + OH⁻ → CVOH

It is a reaction that is know to turn the violet colour of the crystal violet colourless.

The rate of the reaction is also known to be second order; first order with respect to Crystal violet and first order with respect to NaOH.

This means that the rate of reaction is directly proportional to the concentration of NaOH provided all other parameters such as the rate constant and the concentration of Crystal violet are constant.

Hence, the reaction becomes faster with an increased concentration of NaOH.

So, Tom is right, concentrated lye solution would remove the stain faster.

Bob is wrong.

Hope this Helps!!!

4 0
3 years ago
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