Oxygen elements very useful for breathing source. hydrogen is nonmetallic elements that is normal a colourless highly flammable diatomic gas
Answer:
ionic
Explanation:
The 2 aluminum atoms donate 3 electrons each, and the 3 sulfate ions take 2 electrons each. The ionic bond is between the metallic Al (Aluminum) and the nonmetallic SO4 (Sulfate). The bonds within the sulfate ion are covalent, but overall the molecule is ionic
Answer:
When a large, fissile atomic nucleus such as uranium-235 or plutonium-239 absorbs a neutron, it may undergo nuclear fission. The nucleus splits into two or more lighter nuclei, releasing kinetic energy, gamma radiation, and free neutrons.
Explanation:
Hope this helps. :)
Answer:
0.302 moles
Explanation:
Data given
Mass of Pb(NO₃)₂ = 100 g
Moles of Pb(NO₃)₂ = ?
Solution:
To find mole we have to know about molar mass of Pb(NO₃)₂
So,
Molar mass of Pb(NO₃)₂ = 207 + 2[14 + 3(16)]
= 207 + 2[14 + 48]
= 207 + 124
Molar mass of Pb(NO₃)₂ = 331 g/mol
Formula used :
no. of moles = mass in grams / molar mass
Put values in above formula
no. of moles = 100 g / 331 g/mol
no. of moles = 0.302 moles
no. of moles of Pb(NO₃)₂ = 0.302 moles
It becomes more liquidy and sticky.