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RoseWind [281]
3 years ago
9

How do you determine if an element is metal or non-metal?

Chemistry
2 answers:
snow_tiger [21]3 years ago
5 0

Answer: If the outermost shell has 1–4 electrons, it is a metal.

If the outermost shell has 5–7 electrons, it is a non-metal.

denpristay [2]3 years ago
3 0
Metal elements have 1,2,3 or 4 electrons in the outer most shell while non metals have 5,6 or 7 electrons.
Example - Carbon
atomic number - 6
electron configuration - 2,4
Meaning it has 4 electrons in its outer most shell which makes it a METAL.
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Explain why it is not a good idea to throw an aerosol can into a fire. Which gas law applies?
Helga [31]
The gas inside the can and the can’s volume are both constant.
The gas pressure increases with increasing temperature.
The can will burst if the pressure becomes great enough.
The gas law that applies is Gay-Lussac’s law.
5 0
3 years ago
Read 2 more answers
A 125-mL sample of an aqueous solution of the protein ovalbumin from chicken egg white contains 1.31 g of the dissolved protein
Stella [2.4K]

The molar mass of the protein is 45095 g/mol.

The mass of a sample of a chemical compound divided by the quantity, or number of moles in the sample, measured in moles, is known as the molar mass of that compound.

The expression of molar mass of protein is

M₂ = (W₂/P) (RT/V)

Given;

W₂ = 1.31g

P = 4.32 torr = 5.75 X 10⁻³ bar

R = 0.083 Lbar/mol/K

T = 25°C = 298.15 K

V = 125 ml = 0.125 L

Putting all the values in the above formula

M₂= (1.31 g/5.75 X 10⁻³ bar) X (0.083 Lbar/mol/K X 2)/0.125 L)

M₂ = 45095 g/mol

Thus, the molar mass of the protein is 45095 g/mol.

Learn more about the Molar mass with the help of the given link:

brainly.com/question/22997914

#SPJ4

7 0
2 years ago
What types of rock make up the continental crust?
zlopas [31]

There are two types of rocks that make up the continental crust "sedimentary and metamorphic rocks." Sedimentary rocks are formed with pressure and compaction, and metamorphic rocks are made with heat and pressure. The earth's crust itself is made up of sedimentary rocks because they are mainly found a little under earths crust same goes with metamorphic rocks.

Hope this helps!

7 0
3 years ago
*BRAINLIEST* Is calcium nitrate solution an element, compound, homogenous mixture, or heterogeneous mixture?
murzikaleks [220]

Answer:

It's a compound.

4 0
3 years ago
Read 2 more answers
In the chemical reaction, how many grams of nitrogen are needed to completely react with 24.3 grams of hydrogen
vlabodo [156]

Answer:

112.540 gram of N2

Explanation:

From the balanced chemical equation

N2+3H2----->2NH3

It means that 1 mole of Nitrogen needs 3 moles of hydrogen

In term of mass,we can say that

6.048 gram of H2 needs 28.01 gram of N2

or, 1 gram of H2 needs (28.01/6.048) gram of N2

and 24.3gram of H2 needs (24.3*28.01/6.048) gram of N2

=112.540 gram of N2

5 0
3 years ago
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