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Tema [17]
4 years ago
12

Explain how unstable atoms gain stability

Chemistry
1 answer:
IRINA_888 [86]4 years ago
4 0
The atoms decay until the nucleus is balanced again 

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Why NaCl not expected to produce a gas when tested with HCL?
MariettaO [177]

Explanation:

NaCl is a strong salt of strong base and strong acid whereas HCl is a strong acid.

In the solution both dissociates in the solution into their respective ions as shown below:

NaCl ⇒ Na⁺ + Cl⁻

HCl ⇒ H⁺ + Cl⁻

Hence, the ions Na⁺, Cl⁻ and H⁺ are formed and there is no scope of reaction between them for a gas to evolve. They remain in the hydrated state in water.

5 0
4 years ago
You have 100 mL of a 12M solution of HCl, and you need to dilute it to 1.5M for an experiment. How many liters will your new sol
sashaice [31]

Answer:

800.0 mL.

Explanation:

  • To solve this problem; we must mention the rule states the no. of millimoles of a substance before and after dilution is the same.

<em>(MV)before dilution of HCl = (MV)after dilution of HCl</em>

M before dilution = 12.0 M, V before dilution = 100.0 mL.

M after dilution = 1.5 M, V after dilution = ??? mL.

∵ (MV)before dilution of HCl = (MV)after dilution of HCl

∴ (12.0 M)(100.0 mL) = (1.5 M)(V after dilution of HCl)

<em>∴ V after dilution of HCl = (12.0 M)(100.0 mL)/(1`.5 M) = 800.0 mL.</em>

8 0
3 years ago
Photosynthesis produces
dmitriy555 [2]
Photosynthesis produces glucose and oxygen.... Respiration on the other hand would produce the other options.
8 0
3 years ago
What is the molarity of a solution that contains 0.4mol KCl in 3.5L of solution?
OLga [1]

Answer:

0.1143M

Explanation:

if one 0.4moles=3.5l what about 1litre

3 0
4 years ago
A student needs to make a solution of 308 mL of 0.02 M of Copper (II) Sulfate. All they have available is a solution of 0.250 M.
marysya [2.9K]

Answer:

this link not hacl belive me

https://www.flinnsci.com/api/library/Download/18ce587821c24fb3b0ad7d878bd6a3d9Explanation:

5 0
3 years ago
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