1. combustion
2.decompostioni
3.synthesids
4double replacement
5.single replacement
Answer:
3.2043 x 10²³
Explanation:
No. of Mole of lead (Pb) = 0.532 mol
No. of atoms of lead = ?
Solution:
Formula Used to calculate
no. of moles = numbers of particles (ions, molecules, atoms) /Avogadro's number
Avogadro's no. = 6.023 x10²³
So,
The formula could be written as
no. of atoms of lead Pb = no. of moles x 6.023 x10²³
Put the values in above formula
no. of atoms of lead Pb = 0.532 mol x 6.023 x10²³
no. of atoms of lead Pb = 3.2043 x 10²³
so 3.2043 x 10²³ atoms of lead are contained in 0.532 mole.
Answer:
311.25k
Explanation:
The question assumes heat is not lost to the surroundings, therefore
heat emitted from hotter sample (
)= heat absorbed by the less hotter sample(
)
The relationship between heat (q), mass (m) and temperature (t) is 
where c is specific heat capacity,
temperature change.
= 
equating both heat emitted and absorb


where the values with subset 1 are the values of the hotter sample of water and the values with subset 2 are the values of the less hot sample of water.
C will cancel out since both are water and they have the same specific heat capacity.
so we have

where m1 = 50g, t 1initial = 330, m2 = 30g, t2 initial = 280,t final (final temperature of the mixture) = ?
-50 * (
- 330) = 30 * (
- 280)
-50
+ 16500 = 30
- 8400
80
= 16500+8400
80
= 24900
= 24900/80 = 311.25k
The question that you asked has already been answered
Answer:
plyojexity
Explanation:
222^ -67'h~=H87
KJ energy is 5761 g and uses folytics and eats up the waizamorts of golerigrofy