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Montano1993 [528]
3 years ago
7

Which type of electromagnetic waves has more energy, an ultraviolet wave or an infrared wave?How can you tell this by looking at

the electromagnetic spectrum?
Chemistry
1 answer:
Nitella [24]3 years ago
8 0
Ultraviolet has more energy. You can tell because it has a shorter wave. The longer the wave is on the electromagnetic spectrum the less energy is stored. 
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Which rigid cylinder contains the same number of gas molecules at STP as a 2.0-liter rigid cylinder containing H2(g) at STP?
Inga [223]
When we say STP that means the system is at its standard temperature and pressure. Both systems is having the same condition hence temperature and pressure is constant. We then set the amount of gas in both cases to be equal. Hence from the ideal gas law, 
PV=nRT we can say that with everything constant, volume must also be constant. 

The answer is (2) 2 L of methane gas. 
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3 years ago
List 10 things that need a pull to move.
LUCKY_DIMON [66]

Answer:

a cabinet

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3 years ago
The combustion of propane may be described by the chemical equation, 
olasank [31]
\nu_{C_3H_8}=\frac{40.4}{\mu_{C_3H_8}}=
=\frac{40.4}{3A_C+8A_H}=\frac{40.4}{44}=
=\frac{9}{10}=0.9mol
1mol\ C_3H_8...5\ mol\ O_2 \\ 0.9mol\ C_3H_8...x\ mol\ O_2
x=\frac{0.9*5}{1}=4.5mol\ O_2
m=\mu_{O_2}*x=2*A_O*4.5=9*8=72g\ O_2
6 0
4 years ago
Which models of the atom include a structure that is mostly made of empty space?RutherfordThomsonBohrQuantum mechanical
Luba_88 [7]
<h2>Answer:</h2>

Rutherford's models

<h2>Explanations:</h2><h2>What is the electron cloud model?</h2>

There are known as the region where electrons are found especially in the nucleus.

According to the five basic atomic models which have contributed to the structure of the atom itself, the Rutherford's models of the atom include a structure that is mostly made of empty space compared to thomson that proposed the plum pudding model of the atom

4 0
1 year ago
A student performed an experiment to test the acidity of foods. Put the following steps in the order they should occur.
Alexxandr [17]

Answer:

prepare

creates

observe

ask

records

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3 years ago
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