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12345 [234]
3 years ago
5

A hiker seals a plastic bag that contains dried fruit before the climbs a mountain. What will most likely happen to the plastic

bag as the hiker reaches the top of the mountain a) the bag will expand b) the bag will shrink c) the bad will remain the same size d) the bag will allow air to enter
Chemistry
1 answer:
romanna [79]3 years ago
5 0

From the ideal gas equation,

PV = nRT

where n is number of moles, R is Universal gas constant, P is pressure, V is volume,  and T is temperature of the gas.

The pressure and volume are inversely proportional to each other at constant temperature and number of moles.

Hence, on decreasing the pressure, the volume will increase.

As the hiker reaches a height of a mountain, the pressure would decrease which results in the reestablishment of equilibrium between gas molecules thus resulting in pushing of bag outwards.

Hence, the bag will expand as the hiker reaches the top of the mountain.

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A substance has a volume of 20mL and a density of 2.5 g/mL. what is it’s mass?
DochEvi [55]
2.5X20=50g
50g should be the right answer
Mass=volumeXdenisty.
4 0
3 years ago
What is the expected mass (in kg) of a 10 over 5 B isotope? 1 proton = 1.6726 × 10-27 kg 1 neutron = 1.6749 × 10-27 kg A.1.67 ×
Ira Lisetskai [31]
^{10}_5 B
An atom of this isotope contains 5 protons and 10-5=5 neutrons.

5 \times 1.6726 \times 10^{-27} + 5 \times 1.6749 \times 10^{-27} = \\
8.363 \times 10^{-27} + 8.3745 \times 10^{-27}= \\
16.7375 \times 10^{-27}= \\
1.67375 \times 10^{-26} \approx \\
1.67 \times 10^{-26}

The answer is A. 1.67 × 10⁻²⁶ kg.
8 0
3 years ago
Ladybugs eat aphids on plants. Ajoy counts the number of ladybugs in one square meter of his garden.
kirza4 [7]

To estimate the number of ladybugs in the entire garden, Ajoy needs the dimension of the garden.

<h3>What is a dimension?</h3>

Dimensions in mathematics are the measure of the size or distance of an object or region or space in one direction.

Dimensional measurement is of fundamental importance for interchangeability and global trade.

Hence, to estimate the number of ladybugs in the entire garden, Ajoy needs the dimension of the garden.

Learn more about dimensions here:

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#SPJ1

4 0
2 years ago
What is the temperature of liquid nitrogen?
motikmotik
Really darn cold lol
6 0
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You are working the grill at a restaurant and are having trouble getting the grill lit through electrical means. You light a mat
never [62]

Answer:

in this situation I would a little bold

Explanation:

first I don't know what extinguisher I would use pretty much any that helps with fires. I'll back people up, take the hood and put it on the small fire that way it will light out more and if I open the hood and there still a little fire I would use the extinguisher and no one gets hurt :)

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