How many hydrogen atoms does a molecule of calcium hydroxide contain?
Two
A molecule of calcium hydroxide contains 2 hydrogen atoms.
Here is a quick breakdown of why:
The chemical formula for calcium hydroxide is
$$\text{Ca(OH)}_2$$
.
$$\text{Ca}$$
represents one calcium atom.
$$\text{OH}$$
represents a hydroxide ion, which consists of one oxygen atom and one hydrogen atom.
The subscript
$$2$$
outside the parentheses means everything inside those parentheses is multiplied by two.
So,
$$2 \times 1$$
hydrogen atom = 2 hydrogen atoms (along with 2 oxygen atoms and 1 calcium atom).
Similar Questions
Sphalerite is an ore of:
Ammonia is a compound with the molecular formula of:
Which of the following acids is responsible for the sharp flavour in soft drinks?
How many hydrogen atoms does a molecule of acetic acid contain?
Important Questions from Basic Concepts of Chemistry
Which of the following pair is correct?
I. Isotopes – different mass numbers
II. Isobars – different atomic numbers
Which of the following is a zone of a flame?
I. Dark
II. Luminous
III. Non-Luminous
Sphalerite is an ore of:
If formula of sodium salt of an anion X is \(Na_2X\) , then the formula of its aluminium salt would be
Which of the following set contains same number of molecules?
A. 1 gram O 2, 2 grams SO 2
B. 1 gram CO 2, 1 gram N 2O
C. 1 gram O 2, 1 gram O 3
