Answer:
H. The ermine's dark brown coat in the summer changes to white is the winter.
Explanation:
If the ermine want to survive and not get attacked by predators, then they need to change the color of the coat from brown to white
Hydrochloric acid is very corrosive. Handling it should be properly taken cared off. Personal protective equipment should be worn at all times when using this substance. PPE includes gloves specific for the substance used, goggles, closed flat shoes and laboratory gown. The same should be done for handling silver nitrate.<span />
Answer:
Newton's first and third law of Motion
Explanation:
The laws applying in the example Newton's first and third laws of Motion.
- The first law states that any object at rest (ie. not moving) will stay at rest until it is forced to move by an external force. In this case, said force were the propulsion gases ignited.
- As the hot gases were pushed out from the engine nozzle, there was another force <em>equal in magnitud but opposite in direction</em> (as the gases went down, that force went upwards), said force is directly responsible for the rocket taking off. That is an example of the third law.
B.
Spring tides occur during a new/full moon. The sun, moon and earth form a straight line during these phases.
Given: 2.0 mol of methanol, molar mass of methanol(32.0 g/mol)
Wanted: Grams of 2.0 mol of methanol
Grams of solute= 2.0mol * 32.0g/1 mole = x
2.0 * 32.0 = [64.0g CH3OH]
Hope this is helpful!
