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gavmur [86]
3 years ago
13

Help me with assigment please

Chemistry
1 answer:
vesna_86 [32]3 years ago
8 0

Answer: I belive the answer is A

Explanation:

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Do you think that more elements will be discovered to be added to the periodic table? If so, what kind of elements might these b
sergejj [24]

Answer:

Last week, it was announced that four new elements would be added to the periodic table, a collaboration from researchers in Russia, Japan and the U.S. Elements 113, 115, 117, and 118, which will complete the seventh row, are superheavy elements, that have an atomic number greater than 104.

Explanation:

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2 years ago
Si un electron no consume, ni libera energía el átomo se encuentra:
Sladkaya [172]

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ni idea lol

Explanation:

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3 years ago
What happens when an electrolyte, NaCl is added to hydrate ferric oxide solution​
Dafna11 [192]

Answer:

hydrated ferric oxide is ferric hydoxide sol and is positively charged. When aqueous solution of NaCl is added to it,the Cl- ions neutralise the positive charge on the sol particles. In the absence of charge, brown precipitate is formes due to colloids can be coagulation of particles.Nov 11, 2020

Explanation: hope this help

4 0
3 years ago
A solution is prepared by dissolving 0.23 mol of chloroacetic acid and 0.27 mol of sodium chloroacetate in water sufficient to y
Sergio [31]

Answer:

c. chloroacetate ion

Explanation:

The chloroacetic acid, ClCH₂CO₂H, is a weak acid with Ka = 1.36x10⁻³. When this weak acid is in solution with its conjugate base, ClCH₂CO₂⁻ (From sodium chloroacetate) a buffer is produced. The addition of a strong acid as the HCl produce the following reaction

HCl + ClCH₂CO₂⁻ → ClCH₂CO₂H + Cl⁻.

Where the acid reacts with the chloroacetate ion to produce more chloroacetic acid

That means, the HCl reacts with the chloroacetate ion present in the buffer solution

Right answer is:

<h3>c. chloroacetate ion</h3>
8 0
3 years ago
Name the first 20 elements on the periodic table
Sergeu [11.5K]

Answer:

1HydrogenH2HeliumHe3LithiumLi4BerylliumBe5BoronB6CarbonC7NitrogenN8OxygenO9FluorineF10NeonNe11SodiumNa12MagnesiumMg13AluminiumAl14SiliconSi15PhosphorusP16SulfurS17ChlorineCl18ArgonAr19PotassiumK20CalciumCa

8 0
3 years ago
Read 2 more answers
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