Answer: Element
Explanation: hope this helps :3
b. a phosphate group.
c. a sugar group.
d. pyrimidines.
b. Alkyne series
c. Saturated hydrocarbons
d. Unsaturated hydrocarbons
e. Aromatic hydrocarbons
Answer: Chemical Reactions,Acids, and Bases Practice
1. 2Na+Br2--->2NaBr
2. 92.4g
3. Volume of the solution
4. Reacts with metals
5. Exothermic
6. Conserved
The molar mass of CO2 is 28 grams per mole. If you aregiven 2.1 moles of CO2 and you are required to find the grams of this compound,simply multiply 28 grams per mole of CO2 by 2.1 moles of CO2 and you will get 58.8grams of CO2.
(2) equal to the total number of protons gained
(3) less than the total number of electrons gained
(4) less than the total number of protons gained
Answer is: (1) equal to the total number of electrons gained.
In oxido-reduction reaction, at least one element lose and one element gain electrons.
Oxidation reaction is increasing of oxidation number of atom, because element lost electrons in chemical reaction.
Reduction is lowering oxidation number because atom gain electrons.
For example, in oxidation-reduction reaction: 2H₂ + O₂ → 2H₂O; hydrogen is oxidized (change oxidation number from 0 to +1) and oxygen i s reduced (change oxidation number from 0 to -2).
Hydrogen lost .four electrons anf oxygen gain four electrons
Fluorine and chlorine are in the same group of the periodic table (Group 17) because they both have seven electrons in their outermost shell which leads to similar chemical behavior. Fluorine's electronic structure is 2,7, while chlorine's is 2,8,7.
Fluorine and chlorine are in the same group (Group 17) on the periodic table because they have similar electronicstructures, specifically, they both have seven electrons in their outermost (valence) shell. This same property results in similar chemical behaviors as elements in the same group of the periodic table tend to have similar properties because they have the same number of valence electrons.
The electronic structure of fluorine, which has 9 electrons in total, is 2,7. This means there are 2 electrons in the first energy level and 7 in the second. Chlorine, with 17 electrons total, has an electronic structure of 2,8,7. This means there are 2 electrons in the first energy level, 8 in the second, and 7 in the third.
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