The answer to this question would be: covalent bond
Silicon dioxide or SiO2 is made of silicon which is a metalloid and oxygen which is a gas. The bond that the molecule made is a polar covalent bond because silicon is not a real metal. Silicon dioxide is a polymorph that has many different kinds of crystal form.
Extrusive rock because it takes longer to cool, making the crystal size larger
The reaction is missing the Zn(s) in the reactants. The stoichiometry of the copper/zinc is 1 mole to 1 mole
Answer:
due to the theory of relativity mars does not orbit in a 2 dimensional plane but a three dimensional plane and space itself curves around the planets
Explanation:
Answer:
When potassium reacts with arsenic to form an ionic compound, each metal atom loses 1 electron(s) and each nonmetal atom gains 3 electron(s). There must be 3 potassium atom(s) for every 1 arsenic atom(s) in the reaction.
Explanation:
We need to consider the octet rule: each atom will gain or lose electrons to have 8 electrons in its valence shell.
- Potassium is in Group 1, so it has 1 valence electron, which will lose to form K⁺.
- Arsenic is in Group 15, so it has 5 valence electrons. Then, it will gain 3 electrons to form As³⁻.
To have an electrical molecule between K⁺ and As³⁻, we require 3 K⁺ and 1 As³⁻, and the resulting formula is K₃As.
