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3 years ago

6

Why do magnesium, phosphorus, and zinc exhibit slightly higher first ionization energies than the general trend within each of t

heir periods?

1 answer:

Lapatulllka [165]3 years ago

8 0

Because they are farther across the periodic table<span />

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In order to get lots of helium into tanks to fill kiddy balloons, they put force or pressure onto it. If i have 595 liters of he

alexandr402 [8]

Answer:

1.90 L

Explanation:

Using Boyle's law

${P_1}\times {V_1}={P_2}\times {V_2}$

Given ,

V₁ = 595 L

V₂ = ?

P₁ = 1.00 atm

P₂ = 55.0 atm

Using above equation as:

${P_1}\times {V_1}={P_2}\times {V_2}$

${1.00}\times {595}={55.0}\times {V_2}$

${V_2}=\frac{{1.00}\times {595}}{55.0}\ L$

${V_2}=1.90\ L$

<u>The volume would be 1.90 L.</u>

5 0

3 years ago

I need help plz this is driving me crazy

Elis [28]

A= 6
B= 2
C= 1
D= 5
E= 3
F= 4

4 0

3 years ago

What is the mass number of chlorine?

Anastasy [175]

Answer:

Explanation:

35.453 u

7 0

3 years ago

Using the Hoffman apparatus for electrolysis, a chemist decomposes 2.3 moles of water into its gaseous elements. How many grams

solong [7]

Answer:

2.318032g

Explanation:

-The electrolysis equation of water is written as below:

$2H_2O_{(l)}->2H_2_{(g)}+O_2_{(g)}$

-The mole ratio of Water to the hydrogen formed is 1:1, therefore 2.3 moles of hydrogen gas is produced.

-Hydrogen's molar mass is 1.00784 grams:

$Mass=moles\times molar \ mass\\\\\=2.3\times 1.00784\\\\=2.318032\ g$

Hence, 2.318032 grams of hydrogen is produced.

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4 years ago

enny places a strip of pH paper into a solution. When she removes the pH paper, it has turned yellow-green. What should Jenny do

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Compare it to the chart showing how base or acidic a substance is

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4 years ago