Wegener's idea that the continents slowly moved over Earth's surface became known as CONTINENTAL DRIFT.
In conclusion, Wegener's idea that the continents slowly moved over Earth's surface became known as CONTINENTAL DRIFT.
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Answer: B and C on the tenth question of the assignment
The concentration of the hydrogen dissociated into the solution gives the pH. When the solution has a pH of 5.6 then, the concentration of H⁺ is 2.51 × 10⁻⁶.
The estimation of the acidic and alkalinity of the solution based on the amount of the dissociated hydrogen or the hydronium ions in the solution gives the pH.
It is measured with the help of the pH scale that indicates the range of the acids and bases along with neutral. The formula of the pH includes the negative logarithm of the hydrogen ion concentration. pH is calculated as,
pH = - log [H⁺]
Given,
pH = 5.6
Substituting values above the concentration are calculated as,
pH = - log [H⁺]
5.6 = -log [H⁺]
[H⁺] = 10⁻⁵°⁶ ≈ 0.0000025
= 2.51 × 10⁻⁶
Therefore, the hydrogen concentration in solution with pH 5.6 is equivalent to 2.51 × 10⁻⁶.
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Answer:
Hi there!
The answer to this question is 2.5118X10^-6
Explanation:
The formula to solve this is 10^-pH
B. the transmission of heat across matter
C. the electromagnetic radiation from the surface of an object which is due to the object's temperature
D. the transmission of heat across empty space
Answer: A. the transfer of heat by currents
Explanation: There are three modes of heat transfer:
1) Conduction: This type of heat transfer happens when there is direct contact between the two object. Example: heating a pan on stove.
2) Convection: This type of heat transfer happens when there is a movement of fluid (liquid or gas) due to the movement of hot layers to the top and cold layers to the bottom which leads to convection currents. Example: Heating of swimming pool.
3) Radiation: This type of heat transfer happens when there is direct transfer of energy through space. Example: Heating of earth's surface.
B. The transmission of heat across matter is conduction.
C. The electromagnetic radiation from the surface of an object which is due to the object's temperature is radiation.
D. The transmission of heat across empty space is radiation.
Answer:
A: The transfer of heat by currents.
Explanation:
Convection is the transfer of heat by currents, typically within a liquid or a gas. When heat is transferred by convection, matter flows.
(ii) Filterability
(iii) Appearance
Answer:
Caustic Soda
Limewater
Milk of Magnesia
Bleach
Explanation:
Step 2: Rocks experience extreme heat and pressure
Step 3: Mineral composition of rocks changes
Step 4: Original rocks transform into a new rock
Which step contains an error?
Answer:
Step 1
Explanation:
That is the error
Answer:
The correct answer is Step 1: Rocks pushed up onto Earth's surface due to movement of tectonic plates.
The step 1 is the incorrect. It is incorrect because metamorphic rocks are formed on the surface of the Earth by the effect of heat and pressure on existing rocks. This can greatly affect the hardness, texture or layer patterns of the rocks. These rocks are changed by heat produced by nearby molten igneous rock. When the volcanoes erupt or release lava, the lava seeps inside the cracks of the rock and due to heat and pressure, forms a metamorphic rock.