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a) volcanic action
b) molten magma
c) skeletons of once-licing organisms
d) settling of chemicals from water solutions
e) none of the above
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∙ 14y ago
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How do you classify sedimentary rocks?
The basic division of sedimentary rocks is into clastic and chemical rocks. Clastic rocks are formed when grains form a sediment and are then cemented together, as happens with sandstone or shale. Chemical rocks form when solid precipitates out of solution, for instance when calcium carbonate is formed from sea water to give chalk.
Distinguish between the two categories of chemical sedimentary rock?
One type of chemical sedimentary rock is oolite limestone, which precipitates inorganically. The other type is rocks that are composed of evaporite materials; rocks such as halite, sylvite, gypsum, and barite.
How do chemical sediments produce rock?
Chemical sediments, when conditions are right, precipitates to form chemical sediments. This precipitation occurs one of two ways, by physical processes, or by biochemical origin.
What are chemical sedimentary rocks?
Sedimentary rocks can form when minerals in a body of water have so saturated the water that they precipitate out, like a cloud that is so full of moisture that it pours out rain. Some limestones are formed in this manner as the mineral calcite precipitates out of a saturated solution and undergoes the process of compaction and cementation. The supersaturated solutions can also be caused by evaporation of a body of water high in mineral content. As the water evaporates, the mineral percentage of the remaining solution becomes higher and higher, until the mineral crystallizes. Rocks such as rock salt and rock gypsum are formed in this manner. Sedimentation from precipitation and evaporation form rocks called chemical sedimentary rocks.
Why do precipitates form so quickly?
Precipitates form quickly because when an insoluble substance is introduced into a solution, the insoluble soulution's density is to be greater.
How do you classify sedimentary rocks?
The basic division of sedimentary rocks is into clastic and chemical rocks. Clastic rocks are formed when grains form a sediment and are then cemented together, as happens with sandstone or shale. Chemical rocks form when solid precipitates out of solution, for instance when calcium carbonate is formed from sea water to give chalk.
Can rocks grow like stalactites and stalagmites?
Stalactites and stalagmites are classified as precipitates, a type of chemical sedimentary rock. Yes, rocks can grow like stalactites and stalagmites.
What is the chemical composition of the precipitate of ferric chloride and sodium hydroxide?
They form precipitates of Ferric hydroxide.
Distinguish between the two categories of chemical sedimentary rock?
One type of chemical sedimentary rock is oolite limestone, which precipitates inorganically. The other type is rocks that are composed of evaporite materials; rocks such as halite, sylvite, gypsum, and barite.
How does ingenous rocks form?
by an chemical
How do chemical sediments produce rock?
Chemical sediments, when conditions are right, precipitates to form chemical sediments. This precipitation occurs one of two ways, by physical processes, or by biochemical origin.
What sedimantary rock made of?
Sedimentary rocks are made of various materials such as mineral fragments, organic matter, or chemical precipitates. These materials accumulate over time in layers and become compacted and cemented together to form rocks like sandstone, shale, or limestone.
What are the three main types of sedimentary rock?
The three main types of sedimentary rocks are clastic, chemical and biochemical. Clastic rocks are made of minerals and rocks including quartz, mica and feldspar. Chemical rocks are created when water precipitates from ground water, lakes or the ocean. Biochemical rocks can be found in the ocean. This sedimentary rock comes from plants or living organisms which helps to build tissue.
Does precipitation indicate that a chemical change has taken place?
In most of the cases it is true but in some cases the reactants may also form the precipitates.
Do sedimentary rocks form in chemical processes?
Yes, sedimentary rocks can form through chemical processes. One example is the precipitation of minerals from solution, which occurs when dissolved ions in water bond together to form solid minerals. Another example is chemical weathering, where minerals in rocks are dissolved or altered by chemical reactions, leading to the formation of new minerals.
Why do precipitates sometimes not form?
overheating
What are two ways that chemical rocks form?
crystalized and minerals
