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mars1129 [50]
4 years ago
5

A certain atom has 26 protons 26 electrons and 30 neutrons. its mass number is

Chemistry
1 answer:
Margaret [11]4 years ago
8 0
26 the mass number is always the proton count
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would precipitation occur when 500 ml of a 0.02 m solution of agno3 is mixed with 500ml of a 0.001M solution of nacl? explain
Black_prince [1.1K]
First, write the chemical equation that represents the chemical reation to state the products:

AgNO3 (aq)+ NaCl (aq) → AgCl (s)+ NaNO3 (aq)

The terms (aq) are used to indicate tha the compund is in aqueous solution, whle (s) is used to indicate a solid compound.

You can use the solubility rules or a table of solubilities to check solubilities of Ag Cl and NaNO3 in water. I used a table of solubilities. If  you do it you will find that NaNO3 is soluble in water and AgCl is insoluble. Then AgCl will form a precipitate.

Then, the answer is yes, precipitation of AgCl would occur.


3 0
3 years ago
In the reaction MgCI2+ 2KOH —> Mg(OH)2 + 2KCI if 6 moles MgCI2 are added to 6 miles KOH which is the limiting reagent
Ratling [72]

KOH is the limiting reagent

The molar ratio is 1:2

So if you have 6 moles of MgCl2 you need 12 moles of KOH

7 0
4 years ago
Identify ALL the possible mol ratio from<br> this balanced equation:
Karolina [17]

There are 3 possible mole ratios

<h3>Further explanation</h3>

A reaction coefficient is a number in the chemical formula of a substance involved in the reaction equation. The reaction coefficient is useful for equalizing reagents and products.

Reaction

<em>N₂(g)+3H₂(g)⇒2NH₃</em>

So mol ratio :

N₂:H₂:NH₃=1:3:2

  • Possible mol ratio :

1 mole N₂

3 mol H₂

2 mole NH₃

3 mole H₂

1 mole N₂

2 mole NH₃

<em />

3 0
3 years ago
1. X-linked (also called sex-linked traits) are inherited on the _____ chromosome.
Alex Ar [27]

Answer:

Genes on the X chromosome are said to be X-linked. X-linked genes have distinctive inheritance patterns because they are present in different numbers in females (XX) and males (XY). X-linked human genetic disorders are much more common in males than in females due to the X-linked inheritance pattern.

Explanation:

3 0
3 years ago
Light bending as it passes through a rain drop is an example of Transmission Diffraction Refraction Reflection
Yuliya22 [10]
The answer would be the third one listed, Refraction
4 0
3 years ago
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