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4 years ago

Why is density considered a physical property rather than a chemical property of matter?

Chemistry

1 answer:

Harrizon [31]4 years ago

3 0

Because density is mass and all mass is Physical.

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If 13 grams of copper sulfate is reacted with zinc how much of each product is produced?

Sladkaya [172]

Answer:

No. Of Moles of zinc = m/Ar

= 13/ 65.38 = 0.198 moles

From balanced equation, Mole ration between CuSO4 and Zn is 1 : 1

So only 0.198 moles of CuSO4 reacts, it is in excess

Mass = no of Moles X Mr

Mass = 0.198 X 159.5 = 31.59 grams

Volume = mass m denisty

Volume j 31.59 / 3.6 = 8.78 ml

Explanation:

i think this wrong

7 0

3 years ago

PLS HELP!! Balance this equation: __H2+ 2 O2---> 2 H2O

alekssr [168]

Answer:

2H₂ + O₂ → 2H₂O

Explanation:

The expression of the equation is given as:

_H₂ + 2O₂ → 2H₂O

Now for expression above,

Reactants Products

H 2 4

O 4 2

to balance the equation, we use 2 moles of hydrogen gas and 1 mole of oxygen gas;

2H₂ + O₂ → 2H₂O

6 0

3 years ago

Potassium manganate(VI), K2MnO4, can be made to react with water,

vaieri [72.5K]

K2MnO4+(2)H2O —>KMnO4+(2)KOH+(2)H2

Coefficients are in parentheses and subscripts are just normal letters

6 0

3 years ago

Most acids ionize in solution, and most bases _____ in solution.

Setler79 [48]

The correct option is DISSOCIATE.
Acids ionize in water producing hydrogen ions while bases dissociates in solutions. Strong acids ionize completely in water while weak acids only ionize partially. Strong bases dissociate completely in solution while weak bases are typically undergo partial dissociation.

6 0

3 years ago

Read 2 more answers

Q3. Which of the following objects are chiral and which are achiral? a

Sergio039 [100]

Answer:

See explanation

Explanation:

In this question, we have to follow the IUPAC rules. Lets analyze each compound:

a. 1-methylbutane

In this compound we have a chain of 5 carbons, so the correct name is Pentane.

b. 1,1,3-trimethylhexane

In this compound, we longest chain is made of 7 carbons, so, we have to use the name "heptane". Carbon one would be the closet one to the methyl group, so the correct name is 2,4-dimethylheptane.

c. 5-octyne

In this case, carbon 1 would be the closet one to the triplet bond. With this in mind, the correct name is oct-3-yne.

d. 2-ethyl-1-propanol

In this compound, we longest chain is made of 4 carbons, so, we have to use the name "butane". Carbon one would be the carbon with the "OH" group, so the correct name is 2-methylbutan-1-ol.

e. 2.2-dimethyl-3-butanol

In this case, carbon 1 would be the closet one to the "OH". With this in mind, the correct name is 3,3-dimethylbutan-2-ol.

See figure 1

I hope it helps!

3 0

3 years ago