We can change a gas to a liquid by INCREASING the temperature and DECREASING the pressure
Body fossils are exactly what they sound like of the body which includes bones,shell, teeth, skin impression,etc.
Trace fossils are fossils such as footprints, corpolites, etc, which are traces of prehistoric animals
When a solution of MgCl₂ and a solution of AgNO₃ are mixed, the net ionic equation obtained is:
2Cl¯(aq) + 2Ag⁺(aq) —> 2AgCl(s)
<h3>What is a chemical equation? </h3>
Chemical equations are representations of chemical reactions using symbols and formula of the reactants and products.
The reactants are located on the left side while the products are located on the right side.
Reactants —> Products
The balancing of chemical equations follows the law of conservation of matter which states that matter can neither be created nor destroyed during a chemical reaction but can be transferred from one form to another.
<h3>How to write the net ionic equation </h3>
In solution
MgCl₂(aq) —> Mg²⁺(aq) + 2Cl¯(aq)
AgNO₃(aq) —> Ag⁺(aq) + NO₃¯(aq)
The reaction proceeds as follow
MgCl₂(aq) + AgNO₃(aq) —>
Mg²⁺(aq) + 2Cl¯(aq) + 2Ag⁺(aq) + 2NO₃¯(aq) —> 2AgCl(s) + Mg²⁺(aq) + NO₃¯(aq)
Cancel out the spectator ions (i.e Mg²⁺ and NO₃¯) to obtain the net ionic equation
2Cl¯(aq) + 2Ag⁺(aq) —> 2AgCl(s)
Learn more about chemical equation:
brainly.com/question/7181548
Lignite
This is the softest, youngest, and wettest rank of coal, often referred to as "brown coal" with a carbon content of only 25-35% and correspondingly lower energy content.
Density is mass per unit volume
2.4=8.5/v
V=8.5/2.4
V=3.54