3 years ago

A tree can be a _________________________ for insects in a schoolyard.

Chemistry

1 answer:

lora16 [44]3 years ago

8 0

Answer:

habitat/shelter

Explanation:

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A substance with a higher specific heat will take more energy to raise its temperature ?

Wewaii [24]

This is true, well done.

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3 years ago

Why is oxygen spelt o2

Tpy6a [65]

Answer:

it's a diatomic molecule–which is why it is O₂.

Explanation:

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3 years ago

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Find the molality of a solution of 58.5 g NaCl dissolved in 0.556 kg of water

Anit [1.1K]

Answer:lmk

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3 years ago

An object with a mass of 10.0 kg is moving at a speed of 5.00m/s. The kinetic energy of the mass is

NemiM [27]

KE = (1/2)mv^2
m = 10.0 kg
v = 5.00 m/a

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3 years ago

What is the mass of 1.2 mol IrI3?

mr_godi [17]

Answer:

690 g IrI₃

Explanation:

To convert from moles to grams, you have to use the molar mass of the compound. The molar mass of IrI₃ is 572.92 g/mol. You use this as the unit converter in this equation:

$1.2molIrI3 * \frac{572.92g}{1mol} = 687.504 g IrI3$

Round to the lowest number of significant figures which is 2 to get 690 g IrI₃.

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3 years ago