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Marianna [84]
3 years ago
7

List the properties of metals and nonmetals

Chemistry
2 answers:
SCORPION-xisa [38]3 years ago
5 0

Metals:  Have Luster -shiny  Are Conductors -heat and electricity move through them easily  Malleable – Can be hammered into a different shape  Ductile – Can be drawn into a wire  High Density – Heavy for their size  Metals are solid, except for mercury.

Nonmetals: High ionization energies.

High electronegativities.

Poor thermal conductors.

Poor electrical conductors.

Brittle solids—not malleable or ductile.

Little or no metallic luster.

Gain electrons easily.

Dull, not metallic-shiny, although they may be colorful.

Hope this helps. :)

kondor19780726 [428]3 years ago
3 0

Lustrous (shiny)

Good conductors of heat and electricity.

High melting point.

High density (heavy for their size)

Malleable (can be hammered)

Ductile (can be drawn into wires)

Usually solid at room temperature (an exception is mercury)

Opaque as a thin sheet (can't see through metals)

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A certain photon has a frequency of 634x1012 Hz. What is the photon's wavelength in a vacuum? Enter your answer in nm (x10-9 m).
Shtirlitz [24]
<h3>Answer:</h3>

4.73 × 10^4 m

<h3>Explanation:</h3>

From the question;

Frequency of the photon = 634 × 10^12 Hz

We are required to calculate the wavelength of the photon.

We need to know the relationship between wavelength and frequency of a wave.

The relationship between f and λ is given by;

c = fλ

Where c, is the speed of light, 2.998 × 10^8 m/s

Therefore, to get the wavelength we rearrange the formula such that;

λ = c ÷ f

  = 2.998 × 10^8 m/s ÷ 634 × 10^12 Hz

  = 4.73 × 10^-5 m

But we require wavelength in nm

1 M = 10^9 nm

Therefore;

Wavelength = 4.73 × 10^-5 m × 10^9 nm/m

                    = 4.73 × 10^4 m

Hence, the photon's wavelength is 4.73 × 10^4 m

4 0
3 years ago
Which part of the atom cannot have its location accurately determined and is modeled by a cloud around the center of the
Vesnalui [34]

Answer:

the electron

Explanation:

4 0
3 years ago
IF YOU DON'T ANSWER IT CORRECTLY OR IN AT LEAST A DECENT WAY&lt; I WILL REPORT!!! I'm giving 30 points for this!!!!
pantera1 [17]

Answer:

Color Change.

Production of an odor.

Change of Temperature.

Evolution of a gas (formation of bubbles)

Precipitate (formation of a solid)

Chicken turning color

Explanation:

I have when i have put a mint in the coke and it exploded and then another is when i dyed my water purple for no reason and when i heat water it start do evaporate or bubble and water turning into ice and when you know  you cook chicken the chicken is pink then when you season the chicken it turn golden brown and when you put milk and cereal together and if you leave it in to long it get soggy.

7 0
3 years ago
A sample of ammonia is found to occupy 0.250 L under laboratory conditions of 27 °C and 0.850 atm. Find the volume of this sampl
Rzqust [24]

Answer:

0.193 L

Explanation:

Step 1:

Data obtained from the question.

Initial Volume (V1) = 0.250 L

Initial temperature (T1) = 27°C

Initial pressure (P1) = 0.850 atm

Final volume (V2) =?

Final temperature (T2) = 0°C

Final pressure (P2) = 1.00 atm

Step 2:

Conversion of celsius temperature to Kelvin temperature.

Temperature (Kelvin) = temperature (celsius) + 273

Initial temperature (T1) = 27°C = 27°C + 273 = 300K

Final temperature (T2) = 0°C = 0°C + 273 = 273K

Step 3:

Determination of the new volume of the sample of ammonia gas.

The new volume can be obtain by using the general gas equation as shown below:

P1V1/T1 = P2V2/T2

0.850x0.250/300 = 1xV2/273

Cross multiply to express in linear form

300 x V2 = 0.850x0.250x273

Divide both side by 300

V2 = (0.850x0.250x273) /300

V2 = 0.193 L

Therefore, the volume of the sample at 0 °C and 1.00 atm is 0.193 L

6 0
3 years ago
What is the mass of 1 mole of water
Lady bird [3.3K]

Answer:

18.01528 g/mol

Explanation:

Using the equation to figure this out

4 0
4 years ago
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