Answer:
See the answer below
Explanation:
<em>Recall that the law of dilution states that the number of moles before dilution must be equal to the number of moles after dilution.</em>
Mathematically,
molarity x number of moles before dilution = molarity x number of moles after dilution.
For solution A: final molarity = 3 mM, final volume = 2mL, initial molarity of KMnO4 = 10 mM
Applying the equation:
10 x initial volume = 3 x 2
initial volume = 6/10 = 0.6
<u>Hence, Tube A should be made with 0.6 mL of 10 mM KMnO4 stock and 1.4 mL of distilled water to give a solution of 2 mL 3 mM KMnO4.</u>
For solution B:final molarity = 8 mM, final volume = 2 mL, initial molarity = 10 mM
10 x initial volume = 8 x 2
initial volume = 16/10 = 1.6
<u>Hence, Tube B should be made with 1.6 mL of 10 mM KMnO4 stock and 0.4 mL of distilled water to give a solution of 2 mL 8mM KMnO4. </u>
South America, Brazil, Canada, And Hawaii
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<span>Endorphin. Endorphin are pepetide hormones secreted by the central nervous system and the pituitary gland. They inhibit the transmission of pain signals; they also produce a feeling of euphoria very similar to the ones produced by other opioids. Its 1 production is usually triggered by various human activities although they are produced in response to pain. Carrying out frequent exercise usually stimulates the release of beta-endorphin in the human brain known as runner's high. This is the probably the reason Mobombi could finish the race pain free.</span>
Answer:
When a new and aggressive species is introduced into an ecosystem, it may not have any natural predators or controls. It can breed and spread quickly, taking over an area. Invasive species can change the food web in an ecosystem by destroying or replacing native food sources.
Explanation:
I majored in Biology
C is the answer.
Metamorphic rocks is when a rock changes under time and lots of pressure.
Sedimentary is rocks made of sediment.
Igneous rocks are rocks that are made of magma.
Knowing this, C is closest to the definition of metamorphic rocks.
