The answer is B) dry and irregular
Ans: 15.1 grams
Given reaction:
Na2CO3 + Ca(OH)2 → 2NaOH + CaCO3
Mass of Na2CO3 = 20.0 g
Molar mass of Na2CO3 = 105.985 g/mol
# moles of Na2CO3 = 20/105.985 = 0.1887 moles
Based on the reaction stoichiometry: 1 mole of Na2CO3 produces 2 moles of NaOH
# moles of NaOH produced = 0.1887*2 = 0.3774 moles
Molar mass of NaOH = 22.989 + 15.999 + 1.008 = 39.996 g/mol
Mass of NaOH produced = 0.3774*39.996 = 15.09 grams
Answer:
A
Explanation:
A compound machine is a combination of two or more simple machines.
Answer:
The answer to your question is Ionic bonding. Magnesium loses 2 electrons and Chlorine gains 1 electron
Explanation:
An Ionic bond is formed between a metal and a nonmetal and the difference of electronegativity is higher than 1.7. In this type of bond, metals lose electrons and nonmetals gain them.
Covalent bonding is formed between two nonmetals and the difference of electronegativity is between 0 and 1.7. Elements share electrons.
Process
Electronegativity of Mg = 1.31
Electronegativity of Cl = 3.16
Difference = 3.16 - 1.31
= 1.85
1.85 > 1.7 then the bond formed is Ionic
Magnesium loses 2 electrons and Chlorine gains 1 electron
Answer:
The correct option is: the precipitation of acidic compounds formed when components of air pollution interact with other components in the air.
Explanation:
<u>Acid rain</u> is a form of precipitation which is usually <u>acidic in nature</u>. The acidic nature of rain is due to the reaction of <u>water molecules with sulfur dioxide, carbon dioxide and nitrogen oxide present in the air, to produce acids.</u>
There are many adverse effects of acid rain, some of them are: effect on water bodies, forests, living organisms, corrosion of structures made of steel and weathering of buildings.
