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mestny [16]
3 years ago
8

All alkali earth metals have the same reactivity with water. True or False

Chemistry
1 answer:
zheka24 [161]3 years ago
4 0
True.  Water is a neutral substance so nothing should react to it, this makes it so that no matter how basic a metal is, it reacts the same to water.
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1. Which of the following qualifies as a Bronsted-Lowry base but not an Arrhenius base?
Luden [163]

Arrhenius Theory: according to Arrhenius, acid is one that can donate proton in an aqueous solution, while base is one that can donate hydroxide ion in an aqueous solution.

Bronsted-Lowry Theory: according to Bronsted Lowry, acid is one that can donate protons while base is one that can accept a proton.

1. In first, only C. NH3 can't give hydroxide ion, but can accept a proton so it is a Bronsted-Lowry Base but not an Arrhenius base.

2.In second, as the definition suggested, bronsted base is one that can accept protons and acid is one that can loose protons. so answer is D. Acids lose H+ and bases gain H+.


5 0
3 years ago
Read 2 more answers
In the commercial manufacture of nitric acid, how many liters of nitrogen dioxide will produce 30 liters of nitric oxide given t
LiRa [457]
2NO + O₂ = 2NO₂

V(NO)=30 L

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5 0
3 years ago
Which of the following salts will be less soluble in 0.10 M NaCl than it is in pure water?
MariettaO [177]

The less soluble salt : PbCl₂

<h3>Further explanation</h3>

Given

0.1 M NaCl

Required

The less soluble salt

Solution

If we see from the answer option, the salt that is more difficult to dissolve in NaCl is PbCl₂ because it has the same ion (Cl)

When PbCl₂ is dissolved in water, ionization will occur

PbCl₂ ⇒ Pb²⁺+ 2Cl⁻

So, when dissolved in NaCl, NaCl itself will be ionized

NaCl ⇒ Na⁺ + Cl⁻

Based on the principle of equilibrium, the addition of an ion (one of the ions is enlarged), the reaction will shift towards the ion that was not added. In addition to this Cl ion, the reaction will shift to the left so that the solubility of PbCl₂ will decrease (the reaction to the right decreases)

8 0
3 years ago
Which sphere exists because of there is liquid iron as part of the earth's core?
Feliz [49]
The answer is the magnetosphere 
4 0
3 years ago
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How did oxygen come up to make 21% of the earth's present atmosphere?
MakcuM [25]
Tiny organisms known as cyanobacteria, or blue-green algae.
4 0
3 years ago
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