Valuable ore deposits and gem crystals are often associated with _____. a. oceans b.oil deposits c. thin crustal areas d. igneous intrusions Which of the following shows a possible sequence that leads to the formation of sedimentary rocks? a. squeezing, heating, bending, folding b. rising, weathering, erosion c. weathering deposition, compaction, cementation d. melting, cooling, crystallization PLZ HELP!! :)
Valuable ore deposits and gem crystals are often associated with igneous intrusions and The possible sequence that leads to the formation of sedimentary rocks is weathering, deposition, compaction, cementation. Thus, the correct options are option D and C.
Sedimentary rocks are types of rocks that are formed through the accumulation and lithification (compaction and cementation) of sediment particles. Sediments can include fragments of rocks, minerals, organic material, and other debris that are transported and deposited by water, wind, ice, or gravity.
Over time, these sediments undergo compaction and cementation processes, where the particles are pressed together and bound by minerals, creating solid rock formations. Sedimentary rocks often exhibit distinct layers or stratification, and they can contain fossils and provide valuable information about Earth's history and past environments.
Examples of sedimentary rocks include sandstone, limestone, shale, and conglomerate.
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Fusion reactions cannot be controlled.
Fusion reactions require very high temperatures and pressure.
Fusion reaction energy cannot be converted into electricity.
Answer:
Fusion reactions require very high temperatures and pressure.
Explanation:
Fusion reactions are nuclear reactions where two small nuclei combine or fuse together to give a larger nuclei or different nuclei with some more sub atomic particles.
The source of energy in sun is fusion reaction between hydrogen to give helium nucleus.
For fusion of two nuclei , a particular energy barrier is to be overcome by the nuclei to come closer.
For this a large amount of initial energy (which is attained by high temperature and high pressure) is required. Hence this makes the candidature of nuclear fusion less favorable as compared to fission.
decomposition
single replacement
double replacement
combustion
Answer: A. synthesis or combination reaction
B. Double replacement reaction
C. Single replace ment reaction
D. Combustion
E. Decomposition
Explanation: A is synthesis since A + B --> AB. It produces a single product
B. is double replacement since Ca replaces Al and vice versa
C is single replacement where Mg kicks out Fe in the product formation
D is combustion where a hydro carbon rteacts with oxygen gas to form CO2 and H2O
E is decomposition ( AB) ---> A + B
Answer:
A. Synthesis
B. Double replacement
C. Single replacement
D. Combustion
E. Decomposition.
According to most scientists, cold fusion will not be a practical source of energy on Earth. Option 1 is correct.
Cold fusion is a hypothetical type of nuclear fusion that would occur at or near room temperature. If it were possible to achieve cold fusion, it would be a virtually unlimited source of energy. However, there is no scientific consensus that cold fusion is actually possible, and there have been many failed attempts to reproduce the results of early experiments.
Most scientists believe that cold fusion will not be a practical source of energy is that it would require very high pressures and temperatures to initiate the fusion reaction. These conditions are difficult to achieve and maintain in a laboratory setting, and it is not clear how they could be scaled up to a commercial level.
Another problem with cold fusion is that it would likely be very expensive to produce. The materials and equipment needed to create the high pressures and temperatures would be very costly, and the energy output would probably be relatively low. Option 1 is correct.
The complete question is
According to most scientists, cold fusion
1. Will not be a practical source of energy on Earth
2. Would be a practical source of energy on Earth if it were less expensive
3. Will be a practical source of energy on Earth within the next few decades
4. Will always continue to be a practical source of energy on Earth
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will not be a practical source of energy on Earth
Answer:
480.40 g.
Explanation:
2 SO₂(g) + O₂(g) → 2 SO₃(g),
it is clear that 2.0 moles of SO₂ react with 1.0 mole of oxygen to produce 2.0 moles of SO₃.
∵ 2.0 moles of SO₂ produce → 2.0 moles of SO₃, from the stichiometry.
∴ 6.0 moles of SO₂ produce → 6.0 moles of SO₃.
mass = no. of moles x molar mass of SO₃ = (6.0 moles)(80.066 g/mol) = 480.396 g ≅ 480.40 g.
Answer:
Mmmm
Explanation: