Answer:
CH4
- 4 electron
- 0 electron
- the geometry of Ch4 is tetrahedral
AlF3
- 3 electron
- 0 electron
- the geometry is trigonal planar
CCl4
- 4 electron
- 0 electron
- the geomotry is tetrahedral
SeH2
- 2 electron
- 2 electron
- the geometry is V shape
Answer:
you could've googled it but here.
Explanation:
The former OSHA limit for sodium hydroxide (also known as caustic soda or Iye) was 2 mg/m3 as an 8-hour TWA. OSHA proposed a 2-mg/m3 ceiling limit for sodium hydroxide, based on the ACGIH- and NIOSH-recommended limits.
1) The main disadvantage of bio plastics is that when they break down , carbondioxide is released and results into global warming.
2) They are designed to be composted , not recycled.
3) fewer proper composting availability.
4) plants grown for bioplastics have negative impacts of their own.
Answer:
the number of protons and neutrons in an atom
Explanation:
To find the atomic number you just have to add the protons to neutrons.
Answer:49.3
Explanation:4.1j/g c * 25g * (t2-45c)=455j
T2-45c = 455j/4.1j/g c * 25g
455/104.6
45+4.3= 49.3 celsius
