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LekaFEV [45]
3 years ago
12

Distinguish between metal and non metal with example

Chemistry
2 answers:
Vika [28.1K]3 years ago
6 0
Metal are good conductor of heat and non metal are poor conductor of heat. Metal are ductile in nature i.e in think wire while non metal are not ductile.
antiseptic1488 [7]3 years ago
5 0

Answer:

Explanation:

Metal is a material in the periodic table s much as iron or gold. A non metal is carbon in diamonds and graphite for pencil lead.

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How many electrons in an atom with the atomic number of 45
Sergio039 [100]

Answer:

Number of Protons: 45

Number of Neutrons: 58

Number of Electrons: 45

Explanation:

Have a nice day

4 0
3 years ago
A sample of water vapor has a volume of 3.15 L, a pressure of 2.40 atm, and a temperature of 325 K. What is the new temperature,
lara31 [8.8K]

Answer:

The answer to your question is:   T2 = 235.44 °K

Explanation:

Data

V1 = 3.15 L                    V2 = 2.78 L

P1 = 2.40 atm               P2 = 1.97 atm

T1 = 325°K                    T2 = ?

Formula

\frac{P1V1}{T1} = \frac{P2V2}{T2}

Process

            T2 = (P2V2T1) / (P1V1)

            T2 = (1.97x 2.78x 325) / (2.40 x 3.15)

            T2 = 1779.895 / 7.56

            T2 = 235.44 °K

4 0
3 years ago
If you are told that one of them is Cr2O3 and the other is OsO4, which one do you expect to be the yellow solid?
Katen [24]
From own experience, I know that OsO4 is colorless, but Cr2O3 is actually a solid green from what I have seen. but I guess it could appear yellow-greenish.
7 0
3 years ago
Read 2 more answers
List 3 particles of an atom (w/their symbol & charge)
Ulleksa [173]

Answer:

there are three fundamental particles of atom

which are :

  • proton ( positively charged (+) )
  • electron ( negatively charged ( - ) )
  • neutron ( having no charge on it ( neutral ))

Particle Symbol

electron =》e-

proton =》p+

neutron =》n°

6 0
2 years ago
Select the correct answer. What is the percent composition of silicon in silicon carbide (SiC)? A. 28% B. 50% C. 70% D. 142%
Nadya [2.5K]

Answer:

C. 70%

Explanation:

Atomic Mass of the silicon = 28 g.

Atomic mass of the Carbon = 12 g.

Total mass of the Silicon Carbide = 28 + 12

= 40 g.

Now, Using the formula.

% Composition = Mass of the silicon/Total mass of the compound × 100 %

= 28/40 × 100 %

= 70 %

Hence, % composition of the silicon in SiC is 70%

7 0
3 years ago
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