Answer:
Chemical reactions often involve changes in energy due to the breaking and formation of bonds. Reactions in which energy is released are exothermic reactions, while those that take in heat energy are endothermic.
Explanation:
Answer:
5 L
Explanation:
Given data
- Initial pressure (P₁): 1 atm
- Initial volume (V₁): 2.5 L
- Final pressure (P₂): 0.50 atm
For a gas, there is an inverse relationship between the pressure and the volume. Mathematically, for an ideal gas that undergoes an isothermic change, this is expressed through Boyle's law.
Answer:
C. Gas exchange occurs through the placenta.
Explanation:
The fetus is a developing baby in the womb or uterus. The fetus is incapable of performing certain life processes itself and hence, depends on the mother to do them. One of these processes is GAS EXCHANGE. Gas exchange occurs in the fetus via a structure called PLACENTA.
Placenta is a structure that forms in the uterus during pregnancy. It helps the developing fetus supply oxygen and nutrients from the mother and also remove wastes from the fetus back to the mother. The oxygen is taken into the fetus via the PLACENTA while the carbon dioxide (waste product of respiration) is removed via the PLACENTA. Hence, Gas exchange occurs through the placenta.
Strong covalent bonds require significant energy to be broken?
Answer:
Full answer in explanation
Explanation:
- High Tide - when tides are at their highest elevation
- Low Tide - when tides are at their lowest elevation
- Spring Tide - when tides experience the greatest range between high and low; occur at New and Full Moons
- Neap Tide - when tides experience the least range between high and low; occur at 1st and 3rd Quarter Moons
- Gravitational Pull - the invisible force that exists between all objects that have mass. The greater the mass, the greater the effect of the force
- Tide - the daily change in ocean levels due to the gravitational force of the moon and the sun exerted on Earth
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