O A. lonic
B. Metallic
OC. Macromolecular
D. Chemical
Reset Selection
The correct answer is option B. Metallic.
Metal is composed of a huge structure of atoms arranged in a regular pattern. Electrons from the outer shell of a metal atom are delocalized and can move freely throughout the structure. This sharing of delocalized electrons results in strong metal bonds.
Metallic bonds are electrostatic attraction between metal cations and the negatively charged ocean of delocalized electrons. The sea of delocalized electrons contains only valence electrons, not core electrons.
Learn more about Metal here: brainly.com/question/4701542
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B.metallic is the answer hope this helped
Answer:
element S is argon and element T is potassium.
4. B
5. D
Explanation:
in an element in periodic table number of elctrons and protons are same.
4. since element S has 18 protons so its atomic number must be 18 so the element is Argon which is the last element of period 4 so the next element will go to period 4 with one extra shell and since the atomic number of next element is 19 the element is Potassium. therefore T is Potassium.
5. number of nucleons in an atom is the number of protons and neutons combined together in an nucleus
B.would be very weak
C.would occur as normal
Answer:
Option (B)
Explanation:
Lake effect snow generally occurs when the cold winds extracts the water content (moisture) from the relatively warmer lakes and carries further and precipitates back on the land areas in the form of snow. Much of the snow is originated from the lake Ontario and it deposits on the nearby terrestrial areas.
So, when the Lake Ontario is cold enough like the air mass that blows in the continental arctic, then it indicates that the lake effect snow would be comparatively very much weak.
Thus, the correct answer is option (B).
Answer: 2.30x10²⁴ molecules CO2
Explanation: Solution:
Convert mass of CO2 to moles
Convert moles of CO2 to molecules using Avogadro's number.
168.2 g CO2 x 1 mole CO2 / 44 g CO2 x 6.022 x10²³ molecules CO2 / 1 mole CO2
= 2.30 x10²⁴ molecules CO2
The sample of carbon dioxide weighing 168.2 grams contains approximately 2.30 x 10^24 molecules. This is calculated by first converting the sample mass to moles, and then multiplying by Avogadro's Number.
To calculate the number of molecules in a sample, you need to know the formula for the substance and the molar mass of the substance. For carbon dioxide (CO2), the molar mass is 44.01 grams/mole.
The sample mass is 168.2 grams, so to calculate the number of moles, we divide the mass of the sample by the molar mass:
Number of moles = Sample Mass / Molar Mass =168.2 grams / 44.01 grams/mole = 3.82 moles (rounded to two decimal places).
The number of molecules is then calculated by multiplying the number of moles by Avogadro's Number (6.022 x 10^23 molecules/mole):
Number of molecules = Number of Moles x Avogadro's Number = 3.82 moles x 6.022 x 10^23 molecules/mole = 2.30 x 10^24 molecules (rounded to two decimal places).
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A)0.167 atm
B)0.437 atm
C)0.886 atm
D)149 atm
Answer:
The new pressure is 0.167 atm
The correct answer is option A
Explanation:
Step 1: Data given
Volume of the gas = 22.4 L
Pressure of the gas = 0.265 atm
The volume increases to 35.52 L
Step 2: Calculate the new pressure
P1*V1 = P2*V2
⇒with P1 = the initial pressure = 0.265 atm
⇒with V1 = the initial volume = 22.4 L
⇒with P2 = the new pressure = TO BE DETERMINED
⇒with V2 = the increased volume = 35.52 L
0.265 atm * 22.4 L = P2 * 35.52 L
P2 = (0.265 atm * 22.4 L) / 35.52 L
P2 = 0.167 atm
The new pressure is 0.167 atm
The correct answer is option A