Three
A typical atom consists of three subatomic particles: protons, neutrons, and electrons (as seen in the helium atom below). Other particles exist as well, such as alpha and beta particles (which are discussed below). The Bohr model shows the three basic subatomic particles in a simple manner.
<span>the attraction to the positive end of a water molecule.hope this helps you</span>
Answer:
2 K(s) + Cl₂(g) ⟶ 2 KCl(s)
2 Cu(s) + O₂(g) ⟶ 2 CuO(s)
Explanation:
Both reactions are synthesis reactions (two substances combine to form another).
Reaction: K(s) + Cl₂(g) ⟶
The product is the binary salt KCl. The balanced chemical equation is:
2 K(s) + Cl₂(g) ⟶ 2 KCl(s)
Reaction: Cu(s) + O₂(g) ⟶
The most likely product is the metal oxide CuO. The balanced chemical equation is:
2 Cu(s) + O₂(g) ⟶ 2 CuO(s)
Answer:
5 moles of iron formed
Explanation:
Given data:
Moles of iron formed = ?
Moles of iron oxide react = 2.50 mol
Solution:
Chemical equation:
Fe₂O₃ + 2Al → Al₂O₃ + 2Fe
Now we will compare the moles of iron with iron oxide.
Fe₂O₃ : Fe
1 ; 2
2.50 : 2×2.50 = 5 mol
1. <span>number of electrons
2.Si
3.Cu
4.There are three positively charged proton in the nucleus
5.mass number
6. A physical substance occur in A and a chemical change occur in B
7.53
8. dont know what you talking about.sorry
9. Independent variable
10.7.5g
This is an answer I can come up with.</span>
