3 years ago

What air moves horizontally or parallel to the ground?

Chemistry

1 answer:

weqwewe [10]3 years ago

7 0

Wind, air that moves to the ground

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When a carnivore eats an herbivore

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2 years ago

Which of the following statements would be the hypothesis most easily tested? a) Oak trees grow tallest between temperatures of

shepuryov [24]

Answer: a) Oak trees grow tallest between temperatures of 10 and 40 degrees

Explanation:

This hypothesis is specific, can be tested (though perhaps not easily), and is well set up.

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7 0

3 years ago

What's the correct answer?

Andrews [41]

Answer:

smoother and less jagged

Explanation:

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3 years ago

When 1.04g of cyclopropane was burnt in excess oxygen in a bomb calorimeter, the temperature rose by 3.69K. The total heat capac

STatiana [176]

Answer:

$\Delta _{comb}H=-2,093\frac{kJ}{mol}$

Explanation:

Hello!

In this case, since these calorimetry problems are characterized by the fact that the calorimeter absorbs the heat released by the combustion of the substance, we can write:

$Q_{rxn}+Q_{cal}=0$

Thus, given the temperature change and the total heat capacity, we obtain the following total heat of reaction:

$Q_{rxn}=-14.01kJ/K*3.69K\\\\Q_{rxn}=-51.70kJ$

Now, by dividing by the moles in 1.04 g of cyclopropane (42.09 g/mol) we obtain the enthalpy of combustion of this fuel:

$n=\frac{1.04g}{42.09g/mol}=0.0247mol\\\\\Delta _{comb}H=\frac{Q_{rxn}}{n}\\\\ \Delta _{comb}H=-2,093\frac{kJ}{mol}$

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4 0

2 years ago

The correct answer for the addition of 5.8 g + 2.26g + 1.311g + 2 g is?

jeka94

Answer:

= 11.371g

Explanation:

Hope This Helps! :]

4 0

3 years ago