3 years ago

What are the columns on the periodic table called?

Chemistry

2 answers:

Stels [109]3 years ago

8 0

Families are another names for the columns

CaHeK987 [17]3 years ago

3 0

Other name for the columns in the periodic table is "Groups"

Hope this helps!

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How many control(s) are in an experiment

weqwewe [10]

You can have as many controls as necessary, But they must remain equal at all times in order to get the most accurate results

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3 years ago

Im to lazy to do this.

san4es73 [151]

D is correct answer

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3 years ago

What would happen to the rate of a reaction with rate law rate = k [NO]^2[H2] if

Ede4ka [16]

The rate of a reaction would be one-fourth.

<h3>Further explanation</h3>

Given

Rate law-r₁ = k [NO]²[H2]

Required

The rate of a reaction

Solution

The reaction rate (v) shows the change in the concentration of the substance (changes in addition to concentrations for reaction products or changes in concentration reduction for reactants) per unit time.

Can be formulated:

Reaction: aA ---> bB

$\large{\boxed{\boxed{\bold{v~=~-\frac{\Delta A}{\Delta t}}}}$

$\large{\boxed{\boxed{\bold{v~=~+\frac{\Delta B}{\Delta t}}}}$

The concentration of NO were halved, so the rate :

$\tt r_2=k[\dfrac{1}{2}No]^2[H_2]\\\\r_2=\dfrac{1}{4}k.[No]^2[H_2]\\\\r_2=\dfrac{1}{4}r_1$

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3 years ago

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KMnO4 + KCI + H2SO4<br>MnSO4 + K2S04+ Cl₂ + H₂O

yKpoI14uk [10]

Answer:

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kicyunya [14]

Sorry if i’m late but your answer should be infrared

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