Answer:
2.29 × 10⁻⁴ moles
Explanation:
Data Given:
Chemical Symbol of Zinc = Zn
Mass of Zinc = 1.5 × 10⁻² g
A.Mass of Zinc = 65.38 g.mol⁻¹
The Atomic Mass of Zinc can be obtained from periodic table. While, the mass is given in statement. Also, it is important to know the symbol because some elements exist in diatomic or polyatomic forms i.e. H₂, N₂, S₈ e.t.c.
Mole is the unit used to calculate the amount of substance. It has following general forms,
Mole = Mass / M.Mass
And,
Mole = # of Particles / 6.022 × 10²³ particles.mol⁻¹
Hence, using first equation,
Moles = 1.5 × 10⁻² g / 65.38 g.mol⁻¹
Moles = 2.29 × 10⁻⁴ moles
Answer:
1. True
2. resting position
3. 5 cm
4. Compressions
5. false
6. 7 m
7. true
8. second one has more amplitude
9. True
10. true
Explanation:
Answer:
Basically it is instructions of how some protein, organ, or pretty much any living organism is to be made. Similar to how different lines of code correspond to how to the software looks or behaves as, DNA acts as codes to make different organs, living beings, cells, pretty much all the living things.
Explanation:
Airbags provide crucial cushioning for people during a crash. They're normally hidden but inflate instantly when a crash begins. Front airbags have been required in all new passenger vehicles since the 1999 model year. If the airbag is underinflated or inflates too quickly, the passenger will still be injured by the steering wheel. If the airbag overinflates or inflates too slowly, the passenger will hit the inflating airbag and be injured. It is critical to get just the right amount of gas in the airbag.
Hope this helps =)