Natural selection is is the adjustment of genes throughout generations based on factors that help it survive.
The answer is A
Answer:
B
Explanation:
DuPont created the first acrylic fibers in 1941 and trademarked them under the name Orlon.
Answer:
0.8 mL
Explanation:
Use the formula M1V1 = M2V2.
Plug the values in.
5(V1) = 0.02(200)
5V1 = 4
V1 = 0.8 mL
Hope this is right, correct me if I'm wrong!
I'm an 11th grader taking physical science so I'm currently learning this.
First you need to have your periodic table labeled.
My teacher made us do it with 3 different colors. 2 for non-metals and 1 for metals as the picture I have with this answer shows.
Next you have to know the different parts of an element on the periodic table.
The top left of an element is the atomic number.
The middle of an element is the chemical symbol, which is the abbreviation of the element
The next word you see near the bottom middle is the name of the element
And then the bottom of the element is the atomic mass.
Ex:
Hydrogen
1. Atomic Number : 1
2. Symbol : H
3. Name: Hydrogen
4. Atomic Mass : 1.007....
You read a periodic table like you read a book, left to right.
If there's anything in particular you need to know about the periodic table, let me know
Niels Bohr is the first person to describe a chemical reaction as the combination of atoms.