Answer:
1. 1795, that's when they were also invented
2. a gray crystalline allotropic form of carbon which occurs as a mineral in some rocks and can be made from coke. It is used as a solid lubricant, in pencils, and as a moderator in nuclear reactors.
3.The second graphite grading scale is known as the HB scal
4. As the concentration of hydrogen ions in a solution increase, the more acidic the solution becomes. ... Thus, as the hydrogen ion concentration increases hydroxide ion concentration falls, and vice versa.
Answer: It is either $6942.5 or $7521.02
Explanation:
To get federal with holding you will need to determine which year. To figure the tax you will need to find out "the one with holding allowance" lately for single and yearly it is around $410 to $4500. That is subtracted from the yearly amount then the remainder is multiplied by the standard 22%
Uhhh maybe this will help?
This is an example of a vault, specifically a barrel vault. This type of construction is very stable because of its weight bearing capacity. Therefore the structure is likely to be long-lasting .
