Answer:
Xenon is less reactive.
Explanation:
Xenon is a noble gas with 8 valence electrons whereas bromine is a halogen with 7 and is very reactive.
The correct answer is: 6.173 seconds.
Explanation:
The formula for half life (of reaction) is:
Half-life =
--- (A)
Where,
K = Rate constant = 0.54 ![\frac{1}{ms}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7Bms%7D)
I = Initial concentration = 0.30 m
Plug in the values in equation (A):
Half-life = ![\frac{1}{0.54*0.30} = 6.173](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B0.54%2A0.30%7D%20%3D%206.173)
Hence, the half life is 6.173 seconds.
Answer:
The air molecules that are surrounding the metal will speed up, and the molecules in the metal will slow down.
Explanation:
As molecules heat they begin to move faster. The heat from the metal plate will make the molecules at room temperature move faster. And the room temperature makes the hot place cool, making the hot plate molecules slow down.
To visualize this, you can use this link
https://phet.colorado.edu/en/simulations/gas-properties
click the play button to activate the activity
<span>The question is asking us "Which of the following would be a result of increased solar activity?"
The Sun is extremely hot, and when it is warm on Earth, the heat has as it source in the Sun. Therefore, an increased solar activity would mean increased temperature on Earth - longer summers and shorter winters, and warmer sea temperatures. The best answer is :
B. Warmer-than-normal sea surface temperatures </span>
Inspect cords and plugs
eliminate octopus connections
never break off third prong on a plug
never use extension cords as permanent wiring
hope this is what you are looking for