Why is the renewable energy resource you chose is negative?

Chemistry

1 answer:

frez [133]3 years ago

7 0

Answer:

There’s a high need for energy storage and are very expensive. Renewable energy is also not always available because some need sun while others need wind.

Explanation:

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zhenek [66]

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3 years ago

Does anyone know the answers for these

Alexeev081 [22]

Answer: 1. 0.045moles

2. 2.10 grams

Explanation:

According to avogadro's law, 1 mole of every substance occupies 22.4 L at STP and contains avogadro's number $6.023\times 10^{23}$ of particles.

To calculate the moles, we use the equation:

$\text{Number of moles}=\frac{\text{Given mass}}{\text {Molar mass}}$

1. $\text{Number of moles of zinc nitrate}=\frac{8.51g}{189.36g/mol}=0.045moles$

2. Mass of $C_2H_4=moles\times {\text {Molar mass}}=0.075moles\times 28.05g/mol=2.10g$

4 0

2 years ago

How much work (in J) is involved in a chemical reaction if the volume decreases from 5.00 to 1.48 L against a constant pressure

Dahasolnce [82]

Given:
ΔV = 5 - 1.48 L = 3.52 L = 0.00352 m³, th chane in volume
p = 0.818 atm = 0.819*101325 Pa = 82985.2 Pa

By definition, the work done is
$W = \int pdV = (82985.2 \, \frac{N}{m^{2}} )*(0.00352 \, m^{3}) = 292.1 \, J$

Answer: 292.1 J

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3 years ago

What is the molarity of 42.1 g of AgNO3 dissolved in 1.75 L of solution?

Vaselesa [24]

B 0.248 is the answer

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2 years ago

Please help with this science assignment

mars1129 [50]

both of the answers are bone

Explanation:

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