Elements are the basic building blocks of the matter that we see all around us.
Answer:
27.216 mg/h.
Explanation:
First you need to convert 100 lb to kg, and there are 45.36 kg, she will receive 10 mcg/kg/min so if you multiply it by 45.36 kg, she will receive 453.6 mcg/min, so in one hour (60 minutes) she will receive 27216 mcg/h, 1000 mcg are 1 mg, so she will receive 27.216 mg/h.
C. two billiard balls colliding and bouncing off each other
Explanation:
From the given options, the most similar scenario to the type of collision depicted in the kinetic molecular theory is the collision of the two billiard balls bouncing off each other.
Here are some of the postulates of the kinetic molecular theory:
- A gas is composed of a large number of identical molecules moving at different speeds.
- The space occupied by the gas molecules is negligible compared to the volume of the container.
- Molecules move independently of one another
- Molecules collides with one another and with the walls of the container elastically i.e without loss of kinetic energy.
- The temperature of the gas is a measure of its average kinetic energy.
Learn more;
Kinetic molecular theory brainly.com/question/12362857
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<u>Step 1- Find each element's molar mass:</u>
K=39.1, Cr=52, O=16
<span><u>Step 2-Multiply by their subscripts:</u>
</span> K=39.1*2=78.2
Cr=52*1=52
O=16*4=64
<span><u>Step 3-Find the molecule's molar mass:</u>
</span> 78.2+52+64= 194.2
<u>Step 4- Divide each element's mass by the </u><span><span><u>molecule's:</u>
</span> K: </span>78.2/194.2= 40.3%
Cr: 52/194.2=26.8%
O: 64/194.2=32.9%
<em>(if this helped, can I get Brainliest? Competing against a friend. Thanks!)</em>