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Shalnov [3]
3 years ago
5

What is the ph value of water and salt?

Chemistry
1 answer:
Andreyy893 years ago
3 0
The ph value of water is 7 but a salt which is  derived from a weak acid will be less than 7 and a salt which is derived from a base will be above 7.

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If 10.g of AgNo3 is available, what volume of 0.25 M AgNo3 can be prepared
Marianna [84]
The equation is L = m/M
First, covert 10. grams of AgNO3 to moles which is 0.059 moles.
Divide 0.059 moles by 0.25M which is 0.24 liters.
3 0
3 years ago
Fe+CuCI2> FeCI2+Cu balancing equations
Volgvan

Explanation:

To balance a chemical equation implies that we are conserving the number and mass of the reacting species.

Chemical equations must obey the law of conservation of mass "in a chemical reaction, matter is neither created nor destroyed".

This suggests that mass is conserved.

The number of atoms on the reactant side must be equal to that on the product end.

Before proceeding, check the species to see if they have equal number of atoms on both sides:

      Fe      +            CuCI₂        →   FeCI₂               +                        Cu

Elements                 reactants              products

  Fe                               1                             1

  Cu                               1                             1

  Cl                                2                              2

We can see that the equation is already balanced

learn more:

balanced equation brainly.com/question/2612756

#learnwithbrainly

3 0
3 years ago
Which three elements have lower melting point than calcium?
lakkis [162]

Calcium belongs to the alkaline earth metal group. Within a group, the melting point decreases from top to bottom. This is because the as the atomic radii increases the outer valence electrons are shielded by the inner electrons and experience a lower nuclear attraction. As a result the bonds can be broken easily which lowers their melting point.

The three elements below Calcium ib Group II A which have a lower melting point are: Strontium (Sr), Barium (Ba) and Radium (Ra)

6 0
4 years ago
Please help me out, picture attached
faust18 [17]

Answer:

the number of atoms in the product is the same as the number of atoms in the reactant

Explanation:

In the product, there are a total of 10 atoms, whereas in the reactant, there are also a total of 10 atoms, the number of atoms in the product is the same as the number of atoms in the reactant.

8 0
3 years ago
The pollen grain produces a pollen tube that grows down the style, to the ovary, and into the .
Irina18 [472]

Answer:

stem

Explanation:

6 0
3 years ago
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