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adelina 88 [10]
3 years ago
6

When metals, non metals,and metallics are composed according to luster, which is best description of the appearance of metalloid

s
Chemistry
1 answer:
Nitella [24]3 years ago
5 0

Answer:

Metalloids are metallic-looking brittle solids that are either semiconductors or exist in semiconducting forms, and have amphoteric or weakly acidic oxides. Typical nonmetals have a dull, coloured or colourless appearance; are brittle when solid; are poor conductors of heat and electricity; and have acidic oxides.

Explanation:

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Does water inside a vacuum boil at a higher or lower temperature than it does under normal pressures?
hammer [34]

Answer:

lower temperature

Explanation:

When we boil water at vacuum, it boils at a lower temperature than the normal temperature

Boiling is defined as a physical phenomenon where bubbles are formed and they turn into vapor when the liquid is brought into heat.

The pressure is also decreased  when water is heated under vacuum. The atmospheric pressure is reduced as the pressure is removed when water water boils at vacuum.

Thus, water inside  vacuum boils at a lower temperature than it does under the normal pressure.

4 0
3 years ago
¿Por qué los hongos no producen su propio alimento?
Vlada [557]

Answer:

Los hongos, a diferencia de las plantas que utilizan la fotosíntesis para producir su alimento, absorben los nutrientes de materia orgánica que descomponen.

Explanation:

8 0
3 years ago
Write the name and the symbol of the element that fits each of the following descriptions: a) the alkaline earth metal in the si
brilliants [131]

Explanation:

a) Barium

b) The metalloid in third period is Silicon

c) Group 4A (or IVA) of the periodic table includes the nonmetal carbon (C)

d) At this temperature, fluorine and chlorine are gases, bromine is a liquid, and iodine and astatine are solids.

e) osmium

f) chlorine (Cl, element 17) are a gas at room temperature, and is found as diatomic molecule (Cl2).

8 0
3 years ago
A small gas cylinder of Helium can be used to fill many more balloons than would fit inside it. Explain how this works, in your
Fudgin [204]
<h2>Gas Molecules Move in Random Motion </h2>

Explanation:

  • According to the property of an ideal gas the volume occupied by the gas molecules themselves is negligible as compared to the volume occupied by the gas
  • The molecules of ideal gas obey Newton's laws of motion thus they move in random motion
  • According to the above statements we can conclude that Helium gas can fill many more balloons as compared to fit the baloons inside the cylinder because the particles of gas is free to move in random motion and can occupy more volume
6 0
3 years ago
What process causes the banks of the Dead Sea to look the way they do?
alexandr402 [8]
As the warm water holds more salt then cold water the fingers cool and produce crystals of salt that soon rains down to the floor of the ocean
6 0
3 years ago
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