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This is an acid – base reaction and this always result a salt and water
in a neutralization reaction. <span>
The salt that is formed will be calcium bromide (calcium
is located in group 2 so calcium bromide has a formula of CaBr2)
so essentially we got:
HBr + Ca(OH)2 ------> CaBr2 + H2O </span>
balancing the elements: <span>
<span>2HBr(aq) + Ca(OH)2(aq) --------> CaBr2(aq) +
2H2O(l)</span></span>
Answer : The molar mass of the solute will be
87.90 g/mol.Explanation : We know the formula for elevation in boiling point, which is
Δt = i
m
given that, Δt = 0.357,
= 5.02 and mass of
= 40,
on substituting the value we get,
0.357 = (1) X (5.02) X (x/ 0.044), on solving we get x = 2.844 X
.
Now, 0.250/ 2.844 X
=
87.90 g/mol. which is the weight of unknown component.
Atoms can be the source of both nuclear and chemical energy. Nuclear energy involves the atom's nucleus; chemical energy involves the atom's electrons—subatomic particles that surround the nucleus.
Answer:
for example, a carbon atom weighs less than 2 × 10−23 g, and an electron .... Determine the numbers of protons, neutrons, and electrons in one of these iodine anions. ... We use the same symbol to indicate one atom of mercury (microscopic ... All known elements and their symbols are in the periodic table
Explanation:
