Answer:
oxygen-carbon dioxide cycle
Animals and plants are connected to each other by the oxygen-carbon dioxide cycle. Plants need the carbon dioxide from animals to live and animals must have the oxygen from plants to survive.
Explanation:
hope this helped !
Answer:
Explanation:
Hello there!
In this case, since the radioactive decay is considered as first-order kinetic model, whereby the remaining mass of the radioactive material involves the initial one, the rate constant and elapsed time:
As we were not initially given the rate constant, we can use the half-life to calculate it as follows:
Thus, we can calculated the elapsed time for the given conditions to obtain:
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I think the answer is 500.0 calories
They have less or more neutrons. Isotopes have same number of protons but different number of neutrons.
Answer:
3.34 M
Explanation:
Step 1: Given data
- Mass of acetic acid: 100 g
- Volume of solution (V): 500.0 mL (0.5000 L)
Step 2: Calculate the moles of acetic acid
The molar mass of acetic acid is 60.05 g/mol.
100 g × 1 mol/60.05 g = 1.67 mol
Step 3: Calculate the molarity of acetic acid
The molarity is equal to the moles of solute divided by the liters of solution.
M = n/V
M = 1.67 mol/0.5000 L = 3.34 M