Answer:
they are semi metals, so they have the properties of semimetals in commen
Combination reaction also called synthesis reaction, the product will always be a compound.
For example:
A + B -> AB
C2 + O2 -> CO2
H2+Cl2 -> HCl
<span>The correct answer should be two oxygen atoms. That's because it's properties are similar to carbon insofar that it can form four bonds, so if it forms bonds with 2 oxygen atoms then it will have all four bonds created since Oxygen forms double bonds. This would make SiO2 which is also known worldwide as silica.</span>
Answer:
NO₃⁻.
Explanation:
- Spectator ions are the ions that is present in the same form on both sides of a chemical equation (do not change).
For the reaction: Mg(s) + Zn²⁺ + 2NO₃⁻ → Mg²⁺ + 2NO₃⁻ + Zn(s),
- The reactants' side contains two ions
: Zn²⁺ and NO₃⁻.
- Also, the product's side also contains two ions
: Mg²⁺ and NO₃⁻.
<em>Because the nitrate anions are present on both sides of the equation, they are spectator ions.</em>
Answer:
For large rivers the problem is not simply a matter of deduction of consumptive use from runoff: it is more complex and the complexity is related to the changes in .
Explanation: