Chemistry, 15.04.2021 21:10 ayandjay01
I will mark you as brainiest if its correct While Mari is travelling through Arizona with her family, she sees many interesting rock formations called “hoodoos.
A park guide tells Mari that hoodoos like this one are formed when water fills cracks in the rock. The water freezes and expands which breaks apart the rock. When the water melts, bits of the rock are washed away. Which two processes has the park guide explained?
A. erosion and chemical weathering
B. deposition and strip mining
C. weathering and animal actions
D. mechanical weathering and erosion
Answers: 1
Chemistry, 21.06.2019 23:00
Ahypothrticalax type of ceramic material is known to have a density of 2.10 g/cm3 and a unit cell of cubic symmetry with a cell edge length of 0.57 nm. the atomic weights of the a and x elements are 28.5and 30.0 g/mol, respectively. on the basis of this information, which of the following crystal structures is (are) possible for this material: sodium chloride, cesium chloride, or zinc blende
Answers: 1
Chemistry, 22.06.2019 14:30
Consider the reduction reactions and their equilibrium constants. cu+(aq)+e−↽−−⇀cu(s)pb2+(aq)+2e−↽−−⇀pb(s)fe3+(aq)+3e−↽−−⇀fe(=6.2×108=4.0×10−5=9.3×10−3 cu + ( aq ) + e − ↽ − − ⇀ cu ( s ) k =6.2× 10 8 pb 2 + ( aq ) +2 e − ↽ − − ⇀ pb ( s ) k =4.0× 10 − 5 fe 3 + ( aq ) +3 e − ↽ − − ⇀ fe ( s ) k =9.3× 10 − 3 arrange these ions from strongest to weakest oxidizing agent.
Answers: 3
Chemistry, 22.06.2019 21:30
Describe at least two advantages and two disadvantages of using hydropower as a source of energy.
Answers: 2
Chemistry, 23.06.2019 01:00
Who examines and coordinates the cleanup of polluted sites?
Answers: 2
I will mark you as brainiest if its correct While Mari is travelling through Arizona with her family...
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