Answer:
d
Explanation:
Aluminium and Indian are in the same group/family
Sodium and Sulfer are in the same period
Elements of the same family have similar properties
Since sulfur and sodium aren't in the same family they dont share properties
Answer:
Explanation:
B.
BALANCED. 7C, 16H, and 22O on each side of equation.
A.
NOT BALANCED. 7C on left and 6C on right.
C.
NOT BALANCED. 16H on left and 10H on right.
D.
NOT BALANCED. 7C on left and 14C on right.
Magma is made from sediments
Answer:
Is there any other part to this question? If not I'm pretty sure the answer is 205.5 kJ
Explanation:
Answer:
3). 1.30 × 10^(24) molecules
Explanation:
From avogadro's law which state that equal volume of all gases at the same temperature and pressure contain the same number of molecules.
We can relate it to this question as;
V₁/n₁ = V₂/n₂
Where;
V₁ is initial volume
n₁ is initial number of molecules
V₂ is final volume
n₂ is final number of molecules
Thus at STP, we have V₁ = V₂ and as such Plugging in the relevant values gives;
5/(1.30 x 10^(24)) = 5/n₂
n₂ = 1.30 x 10^(24) molecules
