D is the answer.
On the left, there are 3 atoms of Ca, 2 atoms of Cr, 6 atoms of N, and 18 atoms of O.
On the right, there are 3 atoms of Ca, 9 atoms of N, 27 atoms of O, and 2 atoms of Cr.
Answer:
The answer to your question is:
Explanation:
Formulas given Status Correct formulas
NaO₂ Incorrect Na₂O
RbCl Correct
K₂S Correct
Al₂Cl₃ Incorrect AlCl₃
MgP₂ Incorrect Mg₃P₂
Answer:
A
Explanation:
The iron corrodes so it oxidized
In gas the speed of sound is 343.2 meters per second, in liquid the speed of sound is 1,484 meters per second and in solids like steel it travels 5,120 meters per second.
Answer:
C
Explanation:
You climbing the water slide gives you potential energy and your building gravitational eneergy.
