Answer:
A
Explanation:
the correct answer is A
This is the sidereal month. It is measured against the background stars. However, the Earth is also orbiting the Sun, and the moon needs extra time to catch up to its previous position relative to the Sun.
Sodium reacts with chlorine to form Na+ ions and Cl- ions in spite of the fact that the first ionization energy of sodium is larger than the electron affinity of chlorine. To explain this, we need to divide the reaction between sodium and chlorine
Molar mass :
O2 = 31.99 g/mol
C5H12 = 72.14 g/mol
<span>C5H12 + 8 O2 = 5 CO2 + 6 H2O
</span>
74.14 g ----------------- 8 x 31.99 g
18 g -------------------- ? ( mass of O2)
18 x 8 x 31.99 / 74.14 =
4606.56 / 74.14 => 62.133 g of O2
hope this helps!
Answer: Option (c) is the correct answer.
Explanation:
Ionic compounds are the compounds formed by transfer of electrons. An ionic compound contains ions which are arranged in an ordered lattice.
This lattice is repeating in nature and thus results in the formation of a compound.
For example, NaCl is an ionic compound that has an ordered crystal lattice.
Thus, we can conclude that the statement they are made up of particles that are arranged in a repeating pattern, is true.
Answer:
atmosphere
Explanation:
because oxygen is retained in the atmosphere
