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Irina-Kira [14]
3 years ago
8

An ice wedge shattering a slab of shale a Chemical Change b Physical Change

Chemistry
1 answer:
Brilliant_brown [7]3 years ago
4 0

Answer:

<u>Physical Change</u>

Explanation:

Its a physical change because it is not changing its molecular structure it is only changing the shape of the shale.

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aqueous potassium chloride will react with which of the following? aqueous potassium chloride will react with which of the follo
babunello [35]

Answer:

potassium chloride reacts with lead nitrate.

Explanation:

According to solubility rule-

(1) All salts containing nitrate ions (NO_{3}^{-}) are soluble.

(2) All salts containing halide ions (Cl^{-},Br^{-},I^{-}) are soluble except  halides of Ag^{+},Pb^{2+},Hg_{2}^{2+}.

Hence aqueous solution of potassium chloride (KCl) reacts with lead nitrate (Pb(NO_{3})_{2}) to produce insoluble precipitate of lead chloride (PbCl_{2})

Balanced reaction: 2KCl+Pb(NO_{3})_{2}\rightarrow 2KNO_{3}+PbCl_{2}

So potassium chloride reacts with lead nitrate.

4 0
3 years ago
First correct answer will get brainliest
goblinko [34]

Answer:

the second one

Explanation:

becuase i asked my teacher

7 0
3 years ago
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What is the meaning of this symbol Fe2+​
Ostrovityanka [42]
Fe is the element Iron, the 2+ is how many electrons is lost to make the ion, so 2 electrons are lost from the valence shell (to make a full outermost shell)
8 0
2 years ago
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A compound contains 70.18 % oxygen by mass. What mass of this compound would be needed to obtain 48.45 grams of oxygen?
Feliz [49]

Answer:

                     69.036 g of Compound is required to obtain 48.45 g of Oxygen.

Explanation:

                    Let us assume that the total mass of the compound is 100 g. So it means that this compound weighing 100 is composed 70.18 % of Oxygen or among 100 g of this compound 70.18 g is constituted by oxygen only. Hence, we can make a relation as that,

                      70.18 g O is present in  =  100 g of a Compound

So,

         48.45 g of O will be present in  =  X g of a Compound

Solving for X,

                        X  =  100 g × 48.45 g ÷ 70.18 g

                        X  =  69.036 g of Compound

4 0
3 years ago
The table shows properties of the most abundant isotope of each of four silver-colored metals.
just olya [345]

Answer: Each isotope has an equal number of protons and electrons.

4 0
1 year ago
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