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worty [1.4K]
3 years ago
14

I have a lab report I have to do for Chemistry on Edge, the lab is on Enthalpy.

Chemistry
1 answer:
lana [24]3 years ago
6 0

Answer:

I need further information.

Explanation:

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Luca wants to identify and quantity the chemicals causing air pollution in a city, but he is using a manual air sampler to colle
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Manual samplers are prone to effects of temperature, speed of wind and air concentrations.

Explanation

Manual samplers face several challenges that can act as drawbacks to obtaining accurate results. They are subjected to effects of sampling duration where long sampling times are needed to obtain adequate mass for detection. Manual samplers face challenges when measuring non-volatile species because particles are observed into the adsorption medium at a slower rate of diffusion.

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3 years ago
Two scientists are debating how to classify a new animal species that they have discovered. They observe that the animal is capa
BaLLatris [955]

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A

Explanation:

7 0
3 years ago
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Mg(OH)2 + 2HNO3 → Mg(NO3)2 + 2H20
LenaWriter [7]

Answer:

A. 1350

You multiply 18.21HNO3* 1mol MgN2O6 * 148.30MgN2O6

Then divide it by the 2mol HNO3 to get 1350

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3 years ago
The type of seismic waves that arrive at the surface first and move by compressing and expanding the ground like an accordion ar
disa [49]

Answer:

p waves

Explanation:

7 0
3 years ago
Arrange the molecules in order from strongest intermolecular force to weakest.
motikmotik

Answer:- C_4H_1_0>C_3H_8>C_2H_6>CH_4

Explanations:- Alkanes are non polar molecules as these only have carbons and hydrogens. Electron negativity difference of C and H is very low and it makes them non polar. These have weaker London dispersion forces.

The forces of attraction becomes stronger in alkanes as the number of carbon increases because the surface area as well as molecular weight of the alkanes increases with an increase in number of carbons.

Butane has four carbons, propane has three carbons, ethane has two and methane has only one carbon, So, the strongest to weakest order of inter molecular forces is butane > propane > ethane > methane .

3 0
4 years ago
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