Answer:
• Information and media literacy
Directions
Read the instructions for this self-checked activity. Type in your response to each question, and check your answers. At the end of the activity, write
brief evaluation of your work.
Activity
Part A
Now that you have analyzed the resources provided in the lesson, write your own response to the question, What is the main reason the US Civil
War started? Base your
Explanation:
• Information and media literacy
Directions
Read the instructions for this self-checked activity. Type in your response to each question, and check your answers. At the end of the activity, write
brief evaluation of your work.
Activity
Part A
Now that you have analyzed the resources provided in the lesson, write your own response to the question, What is the main reason the US Civil
War started? Base your
Answer:
d. it has a high boiling point
Explanation:
all ionic compounds with ionic bonds have high boiling points
The amount of substance present in a certain object with a given half-life in terms of h can be expressed through the equation,
A(t) = (A(o))(0.5)^(t/h)
where A(t) is the amount of substance after t years and A(o) is the original amount. In this item we are given that A(t)/A(o) is equal to 0.89. Substituting the known values,
0.89 = (0.5)(t / 5730 years)
The value of t from the equation is 963.34 years.
<em>Answer: 963 years</em>
Answer:
When the electron changes levels, it decreases energy and the atom emits photons. The photon is emitted with the electron moving from a higher energy level to a lower energy level. The energy of the photon is the exact energy that is lost by the electron moving to its lower energy level.
Explanation:
C
This is because 10+5=15
15/45=0.3
