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konstantin123 [22]
4 years ago
8

A physical change _____ change the composition or identity of the substance. will will not 2. An example of a physical change is

crushing a rock a shirt fading in the sun 3. The most common occurrences of physical changes are changes in the phase of matter. changes that occur in nature.
Chemistry
1 answer:
Sav [38]4 years ago
6 0

Answer:

not sure

Explanation:

a physical change (can)change.,....

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5. What are two disadvantages of sexual reproduction?
Serhud [2]
It requires each gender to find a mate
And
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5 0
3 years ago
Rank the following oxides in order of increasing aqueous acidity: Ga₂O₃, Al₂O₃,In₂O₃
Phantasy [73]

The correct answer is In2O3 < Ga2O3 < Al2O3.

Ga2O3, Al2O3, and In2O3 are the oxides to rank in order of increasing aqueous acidity.

According to the contemporary periodic table's rule, an oxide group's acidity decreases.

The oxidation state of Gallium (Ga) in Ga2O3 = +3

The oxidation state of Aluminium (Al) in Al2O3 = +3

The oxidation state of Indium (In) in In2O3 = +3

From modern periodic table, the order of elements in group 3A is as below:

Baron (B), Aluminum (Al), Gallium (Ga), Indium (In), and Thallium (Tl)

Thus, we can get the oxides in order of increasing their aqueous acidity as below:

In2O3 < Ga2O3 < Al2O3

To learn more about aqueous acidity refer the link:

brainly.com/question/18648828

#SPJ4

4 0
2 years ago
Równania reakcji chemicznej
Aliun [14]

Answer:

Reakcja chemiczna jest opisana równaniem chemicznym, wyrażeniem określającym tożsamość i ilość substancji biorących udział w reakcji. Równanie chemiczne pokazuje początkowy związek (związki) - reagenty - po lewej stronie, a końcowy związek (związki) - produkty - po prawej stronie, oddzielone strzałką.

Explanation:

5 0
4 years ago
Which best explains why a crystal is incompressible?
Finger [1]
I think the correct answer from the choices listed above is option C. The statement that best explains why a crystal is incompressible would be that there is little, if any, space left between its adjacent molecules. Hope this answers the question. Have a nice day.
5 0
3 years ago
Read 2 more answers
A hypothetical AX type of ceramic material is known to have a density of 3.55 g/cm3 and a unit cell of cubic symmetry with a cel
postnew [5]

Explanation:

For AX type ceramic material, the number of formula per unit cells is as follows.

         \rho = \frac{n'(A_{c} + A_{A})}{V_{C}N_{A}}

or,     n' = \frac{\rho a^{3}N_{A}}{(A_{c} + A_{A})}

where,   n' = no. of formula units per cell

           A_{c} = molecular weight of cation = 90.5 g/mol

           A_{a} = molecular weight of anion = 37.3 g/mol

          V_{c} = volume of cubic cell = 3.55 g/cm^{3}

           a = edge length of unit cell = 3.9 \times 10^{-8} cm

        N_{A} = Avogadro's number = 6.023 \times 10^{23}

          \rho = density = 3.55 g/cm^{3}

Now, putting the given values into the above formula as follows.

           n' = \frac{\rho a^{3}N_{A}}{(A_{c} + A_{A})}

                      = \frac{3.55 g/cm^{3} \times (3.9 \times 10^{-8})^{3} \times 6.023 \times 10^{23}}{(90.5 + 37.3)}

                     = 0.9

                    = 1 (approx)

Therefore, we can conclude that out of the given options crystal structure of cesium chloride is possible for this material.

3 0
3 years ago
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