Answer:
At high altitude, it takes longer to cook spaghetti. (Ans 2).
Explanation:
A colligative property of a solution depends on the number of ions or solute particles present in the solution, not the type of the solute. Due to pressure change boiling points have nothing to do with colligative property and solutions.
Colligative properties include:
1) Freezing point depression.
2) Vapor pressure lowering.
3) Boiling point elevation.
4) Osmotic pressure.
At high altitude, the air is under less atmospheric pressure than it is at sea level. So at high altitude, it takes longer to cook spaghetti, because of the water it boils in is not as hot as is it at sea level.
Answer:
Solid turns to liquid.
Explanation:
When you freeze water, it turns into ice. When melted it's still water. No chemical changes were made to the piece of ice melted. The only change was ice (solid) to water (liquid)
Conservation of Matter - Matter can change forms through physical and chemical changes, but no matter what, matter is conserved. The same amount of matter exists before and after the change.
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Answer:
B. Ernest Rutherford
Explanation:
Ernest Rutherford was a renown Physicist and a Physics Nobel price winner. In 1911 he proposed the planetary model of atom. When the experiment were conducted he proposed that the atom had a charged nucleus and are surrounded by electrons. This finding was the basis for subsequent studies on radioactivity.
OPTION D IS YOUR ANSWER.............
The correct answers are:
1. C. during a new Moon;
The spring tides occur twice a month, after new Moon, and after full Moon. They cause the biggest differences in the high and low tides, with the high tides being abnormally high, and the low tides being abnormally low.
2. C. perigee;
The perigee is the point at which the Moon is closest to the Earth. This happens because the Earth is not right in the middle of the Moon's revolution, thus making one part of it being closer, and other part being further away.
3. C. sunrise;
The Moon has no influence on the sunrise whatsoever. The sunrise depends only on the movement of the Earth in comparison to the Sun, with the part is the becoming exposed to it as the Earth rotates being the part that is experiencing the sunrise.