Answer:
I think it is 35
ok if it is right mark as brainliest
Mg=1
O=2
H=2
The 2 only affects what is in the parentheses
The chemical formula for the selenous acid is H2SeO3. Its reaction
with sodium hydroxide, which has a chemical formula of NaOH, will be a
neutralization reaction forming a salt and water. This is depicted below.
H2SeO3 + NaOH à Na2SeO3 +
H2O
If we are to balance the chemical reaction then, we will have a final
answer of,
H2SeO3 + 2NaOH à Na2SeO3 +
2H2O
Answer:
C. SOIL THAT IS A MIXTURE OF STILT AND CLAY
PLS MAKE ME BRAINLEST!
In the physical properties, it is mentioned that the element has 4 valence electrons. The elements in the periodic table are arranged such that, the number of valence electrons present in the neutral atoms belonging to a particular group is equal to the group number.
Thus, the unidentified element can be best classified as a nonmetal in period 4
Ans C)