Answer:
I only know the physical properties
Explanation:
The physical properties of hydrogen are
It is colourless odourless and tasteless in nature
It is lighter in air and insoluble in water
It has an atomic mass of 1.008 amu
Carbon dioxide
The physical properties of carbon dioxide are
It is a colourless and odourless gas
It is slightly toxic
It is denser than air
Water vapour
It is transparent
Answer:
Option 1.
Explanation:
When we warm up, our heart rate increases and we require much more energy to continue. Hence, our body absorbs much more oxygen from the surroundings, digest food and etc.
Sorry if the explanation might sound wrong, I learned this during science 2 years ago so I forgot.
Answer:
Average atomic mass = 6.6575.
Explanation:
As fractions the abundance is 1/4 and 3/4.
The average atomic mass = (5.03 + 3(7.20) / 4
= 6.6575.
Answer:
ΔErxn = -6212.6kJ/mol
Explanation:
When 0.538 g of biphenyl (C₁₂H₁₀) undergoes combustion in a bomb calorimeter, the temperature rises from 26.1 ⁰C to 29.8 ⁰C.