Answer: A) Na+ and O2-
Explanation:
To know the electronic configuration, one has to determine the numbers of electrons present in each atom.
Na+ means a sodium atom that has lost one valence electron. A Sodium atom initially has 11 electrons, but having lost an electron making it 10 electrons remaining with electron configuration of 1s2 2s2 2p6.
O2- means oxygen atom that has gained two valence electrons. An oxygen atom initially has 8 electrons, having gained two electrons makes it 10 electrons with electron configuration of 1s2 2s2 2p6. same as Na+
The purpose of gaining or losing electrons is to attain a stable duplet or octet structure.
Answer:
Explanation:
You can view more details on each measurement unit: molecular weight of Copper(I) Oxide or grams The molecular formula for Copper(I) Oxide is Cu2O. The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles Copper(I) Oxide, or 143.0914 grams.
The answers is false because you do not want to inhale unknown chemicals
Answer:
postpurchase dissonance
Explanation:
The feeling of the buyer after the acquisition of the product can influence the repetition of sales and what he tells others about the product purchased.
A phenomenon that usually occurs after the purchase of the product or service is that of: cognitive dissonance.
Each of the alternatives that the consumer has considered has advantages and limitations, that is, when the purchase decision is finally made, the selected product has certain drawbacks while each of the rejected alternatives has some attractive characteristics.
The negative aspects of the article that is selected together with the positive qualities of the products that are rejected create cognitive dissonance in the consumer.
This cognitive dissonance may vary due to the behavior of the following variables:
- The nominal and real value (money) of the purchase
.
- Rejection of similarity of selected and rejected articles.
- The relative importance of the decision.
Answer:
Number 6 is correct all substances are made of molecules.
Explanation:
A molecule is a formation of atoms or a chemical and all substances are made of chemicals.
