Answer:
D
We don't have a way to contain the radioactive waste produced.
Explanation
Nuclear waste is non disposable and takes millions of years to biodegrade and lose it radio activeness
Answer:
There are three isotopes of silicons. They have masses numbers of 28, 29 and 30. The average amount of silicons is 28.086alum
Explanation:
I learned this in class three days ago so I hope this is helpful i'm in high school ask me for help when ever you want Iĺl help you
Answer: option C - The cells produced at the end of meiosis contain half the number of chromosomes as the parent cell
Explanation:
Meiosis is also known as REDUCTIVE DIVISION, simply because a parent cell with diploid number of chromosome (46) is divided into four daughter cells with haploid number of chromosome (23)
Thus, ONLY option C correctly defines meiosis
A weather map used an “h” to represent areas of higher air pressure
Answer:
(a) barium chloride : BaCl₂ [the cation is barium and anion chloride]
(b) magnesium-nitride
: Mg₃N₂ [Mg is cation and N anion]
(c) sulfur dioxide
: SO₂ [ S is cation and O anion]
(d) nitrogen trichloride : NCl₃
(e) dinitrogen trioxide
: N₂O₃ [two nitrogens and three oxygen]
(f) tin(IV) chloride : SnCl₄
Explanation:
The formula of a compound comprises of the symbol of all the elements.
The element or ion having positive charge is written first followed by anion.
The number of any element is represented as subscript in the formula.
(a) barium chloride : BaCl₂ [the cation is barium and anion chloride]
(b) magnesium-nitride
: Mg₃N₂ [Mg is cation and N anion]
(c) sulfur dioxide
: SO₂ [ S is cation and O anion]
(d) nitrogen trichloride : NCl₃
(e) dinitrogen trioxide
: N₂O₃ [two nitrogens and three oxygen]
(f) tin(IV) chloride : SnCl₄