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Anni [7]
4 years ago
13

Silicon dioxide and diamonds are best described as

Chemistry
1 answer:
kenny6666 [7]4 years ago
8 0
Macromolecules !!!!!!!
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Abbreviated electron configuration for tellurium
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Answer:

The ground state electron configuration of ground state gaseous neutral tellurium is [Kr]. 4d10.

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Henri draws a wave that has a 4 cm distance between the midpoint and the trough. Geri draws a wave that has an 8 cm
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I'm thinking Henri's wave and Geri's wave have the same amplitude and energy, but i'm not %100 sure

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Calculate the work (kJ) done during a reaction in which the internal volume expands from 20 L to 43 L against an outside pressur
Alenkinab [10]

Answer:

\large \boxed{\text{-10.0 kJ}}

Explanation:

1. Calculate the work

w = - pΔV = -4.3 atm × (43 L - 20 L) = -4.3 × 23 L·atm = -98.9 L·atm

2. Convert litre-atmospheres to joules

w = \text{-98.9 L\cdot$atm } \times \dfrac{\text{101.3 J}}{\text{1 L$\cdot$atm }} = \text{-10000 J} = \textbf{-10.0 kJ}\\\\\text{The work done is $\large \boxed{\textbf{-10.0 kJ}}$}

The negative sign indicates that the work was done against the surroundings.

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3 years ago
In a chemical equation what does the downward pointing arrow signify ?​
nikitadnepr [17]

Answer:

<h3>spontaneously precipitate</h3>

An arrow pointing down (as in PbI2?) indicates that the product will spontaneously precipitate from the solution. ("Precipitate," in this sense, means the formation of a solid from the combination of two aqueous solutions.)

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