Answer: A/40 it is actually 39.997 but since that is not an answer they rounded up
Explanation:
Answer:
Explanation: A square of dry ice has a surface temperature of - 109.3 degrees Fahrenheit (- 78.5 degrees C). Dry ice additionally has the extremely decent component of sublimation - as it separates, it transforms legitimately into carbon dioxide gas as opposed to a fluid.
H2S donates a proton, therefore it is a Brønsted-Lowry base; CH3NH2 accepts a proton, so it’s a Brønsted-Lowry base.
All the elements in one group have the same number of valence electrons.
Answer:
10
Explanation:
In image
Take atomic mass or molar mass
of Al =27