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Eddi Din [679]
4 years ago
15

Is mixing paint a physical change if it is why

Chemistry
1 answer:
Anarel [89]4 years ago
4 0
Paint changes color to the physical eye.
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Give four examples of properties of nonmetals that are exactly the opposite of the properties of metals
Ugo [173]
The properties of nonmetals- nonductile(cannot be turned into wire), dull color, high solubility, poor conductors, brittle(difficult to break) and have a wide range of colors. Compared to the properties of a metal- polished color, conducters of heat and electricity, cannot be dissolved, malleable(can bend). Would you like me to use certain elements to show this? 
7 0
3 years ago
If the abundance of ​ 85​ Rb is 72.2% and the abundance of 87​ Rb is 27.8%, what is the average atomic mass of rubidium?
Kisachek [45]

The average atomic mass of Rubidium : 85.556 u

<h3>Further explanation</h3>

Isotopes are atoms that have the same atomic number but different mass numbers

Each isotope has an abundance which is usually expressed as a percentage

The average relative mass of atoms is obtained by adding the product of the percentage and mass of each isotope

Can be formulated:

\tt Average~Mass~atom~X=mass~isotope~ 1\times \%1+mass~isotope~2\times \%2+..

The abundance of ​ 85​ Rb is 72.2% and the abundance of 87​ Rb is 27.8%, so

mass isotope 1=85, %abundance=72.2

mass isotope 2=87, %abundance=27.8

The averages atomic mass of Rubidium :

\tt average~atomic~mass=85\times 0.722+87\times 0.278\\\\average~atomic~mass=61.37+24.186\\\\average~atomic~mass=\boxed{\bold{85.556~u}}

5 0
3 years ago
Why are the planets closest to the sun composed of mostly rock while those further away are composed mostly of gas and ice?
ioda
Because with the planets that are close to the sun are heating up however the plants that are far away are made out of gas and ice because they are further away from the sun, the further away the heat is the colder the planet gets. 
6 0
3 years ago
How are egg products made
Nata [24]

Answer:

Shell eggs are processed into egg products by automated equipment that removes the shell eggs from flats, washes and sanitizes the shells, breaks the eggs and separates the whites and yolks. The liquid egg product is filtered, may be mixed with other ingredients, and is then chilled prior to additional processing

Explanation:

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3 years ago
What title belongs in the circle labeled X in the diagram below?
PIT_PIT [208]
Can you give a picture description? Or any answer choices?
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