3 years ago

Air is a mixture state three reasons

1 answer:

7 0

1. different gases mix together to form air and no new comound is formed
2. air has variable composition
3. air shows the properties of its constituent substances

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Use the graph to answer these questions. The total energy of the reactants is –3,811.92 kJ. –1,273.02 kJ. –2,538.90 kJ.

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Answer:

the first one

Explanation:

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2 years ago

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When will Le Chatelier's principle come into effect?

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If u disturbed equilibrium position then this principal comes into effect deciding how to counteract the disturbance.

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3 years ago

You work for a cutlery manufacturer who wants to electrolytically precipitate 0.500 g of silver onto each piece of a batch of 25

ICE Princess25 [194]

Answer:

373.1 mL of AgCN (aq) must be poured into your electrolysis vat to ensure you have sufficient Ag to plate all of the forks.

Explanation:

Mass of silver to be precipitated on ecah spoon = 0.500 g

Number of silver spoons = 250

Total mass of silver = 250 × 0.500 g = 125 g

$Moles (n)=Molarity(M)\times Volume (L)$

Moles of AgCN = n = $\frac{125 g}{134 g/mol}=0.9328 mol$

Volume of AgCN solution =V

Molarity of the AgCN = 2.50 M

$V=\frac{0.9328 mol}{2.50 M}=0.3731 L=373.1 mL$

(1 L = 1000 mL)

373.1 mL of AgCN (aq) must be poured into your electrolysis vat to ensure you have sufficient Ag to plate all of the forks.

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3 years ago

Which kind of climate do the most stable ecosystems tend to have?

Ganezh [65]

B because the climate has to be pretty balanced and if it’s too cold it won’t be habitable and if the climate is too hot it won’t be habitable aswell

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2 years ago

A basketball weighs approximately 1.35 kg. What is this mass in grams (g)?<br><br> step by step

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1350 g

Explanation: just add a 0

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