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Thepotemich [5.8K]
3 years ago
12

Which pair of symbols represents a metalloid and a noble gas?(1) Si and Bi (3) Ge and Te

Chemistry
2 answers:
Natali5045456 [20]3 years ago
8 0
This is pretty easy lol.... AS and AR 

Andru [333]3 years ago
7 0

Answer;

As (Arsenic) and Ar (Argon)

Explanation;

-Metalloids are chemical elements that exhibits some properties of metals and some of nonmetals. The chemical elements classified as metalloids are boron, silicon, germanium, arsenic, antimony, and tellurium. Noble gases are group eight elements that have an octet configuration. These includes neon, argon, helium, krypton, xenon and radon.

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A) because spontaneous means in an instant
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Starch is a type of: Protein Fat Nucleic acid Sugar
Svetllana [295]

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it's not a protien at all

Explanation:

Starch is not a protein. Starch is a type of carbohydrate. It is a polysaccharide, it has lots of sugars though

8 0
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A 56 g sample of peanut oil has a volume of 60.9 cm³. Calculate the density of the peanut oil
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Density = mass / volume. So you'd write it out as D = 56g / 60.9cm^3, giving you 0.9195 g/cm^3.
4 0
3 years ago
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Según la ecuación, HNO3 + H2S ----------- NO + S+ H2O el elemento que se oxida es
Serhud [2]

Answer:

HNO3 + H2S = H2O + NO + S - Chemical Equation Balancer. Balanced Chemical Equation. 2 HNO 3 + 3 H 2 S → 4 H 2 O + 2 NO + 3 S. Reaction Information. Nitric Acid + Hydrogen Sulfide = Water + Nitric Oxide (radical) + Sulfur . Reactants.

Explanation:

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3 years ago
Harvey kept a balloon with a volume of 348 milliliters at 25.0˚C inside a freezer for a night. When he took it out, its new volu
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Initial volume of the balloon = V_{1}= 348 mL

Initial temperature of the balloon T_{1} = 25.0^{0}C + 273 = 298 K

Final volume of the balloon V_{2} = 322 mL

Final temperature of the balloon = T_{2} = ?

According to Charles law, volume of an ideal gas is directly proportional to the temperature at constant pressure.

\frac{V_{1} }{T_{1} } =\frac{V_{2} }{T_{2} }

On plugging in the values,

\frac{348mL}{298 K} =\frac{322 mL}{T_{2} }

T_{2} =276 K

Therefore, the temperature of the freezer is 276 K

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