The answer is 1s2 2s2 2p6
I believe it would be C. While D is also a good answer, the question asks for the statement that is most likely true, and there is no absolute guarantee that in 20 years our resource use will be higher than it is now.
Atomic mass of N from periodic table is 14 amu so atomic mass of N₂ will be 2 * 14 = 28 amu
This means that every mole of N₂ has mass equal to 28 g
Answer:
![KOH + H_2SO_4 \rightarrow K_2SO_4 + H_2O](https://tex.z-dn.net/?f=KOH%20%2B%20H_2SO_4%20%5Crightarrow%20K_2SO_4%20%2B%20H_2O)
Explanation:
A chemical reaction describes the reaction between reactants to produce products.
A chemical equation is represented as a reactant present on the left-hand side of the equation if two or more reactants are present they are separated by the "plus" sign.
On the right side of the equation product is written and if more than one product is formed then these are separated by "plus" sign as in the reactants.
The reactant and the products are separated by an arrow, the head of arrow is in the direction of the product when the reaction is irreversible.
In the case of reversible reactions or chemical reactions that are present in equilibrium, the reactant and product are separated by a double-headed arrow.
Answer:
Hydrochloric acid + sodium → sodium chloride + water
NaOH +HCl → H2O and NaCl
Explanation:
salt is a neutral ionic compound. Let's see how a neutralization reaction produces both water and a salt, using as an example the reaction between solutions of hydrochloric acid and sodium hydroxide. The overall equation for this reaction is: NaOH +HCl → H2O and NaCl.