Is Aluminium a good heat insulator? Aluminium foil is a great insulator when used properly and a bad one when used incorrectly. It is a great reflector of thermal heat and also stops evaporation and convection of heat as air/water can’t pass through it. Why is rubber a good insulator? What makes rubber a good […]
What happens if you put an inflated balloon in the freezer?
What happens if you put an inflated balloon in the freezer? What would happen if you put a balloon in the freezer? As the air cools it compresses and therefore exerts less pressure on the balloon. If cold enough your balloon will be visibly deflated. If you then bring back to room temperature it will […]
What happens when you put vinegar on the rock?
What happens when you put vinegar on the rock? What happens when you put vinegar on each rock? These mild acids can dissolve rocks that contain calcium carbonate. The lemon juice and vinegar should have bubbled or fizzed on the limestone, calcite, and chalk, which all contain calcium carbonate. Can rock be frozen? Yes, rocks […]
What are called Roots?
What are called Roots? Root, in botany, that part of a vascular plant normally underground. Its primary functions are anchorage of the plant, absorption of water and dissolved minerals and conduction of these to the stem, and storage of reserve foods. What does a root mean sexually? Root is an offensive Australian slang verb meaning […]
What Vsepr stands for?
What Vsepr stands for? valence shell electron pair repulsion Do you include lone pairs in Vsepr? According to this model, valence electrons in the Lewis structure form groups, which may consist of a single bond, a double bond, a triple bond, a lone pair of electrons, or even a single unpaired electron, which in the […]
How do you solve a pure quadratic equation?
What organs help maintain homeostasis?
What organs help maintain homeostasis? In mammals, the main organs involved with homeostasis are: The hypothalamus and pituitary gland. the lungs. the skin. the muscles. the kidneys. the liver and pancreas. What daily activities affects homeostasis? The examples of daily activities that affects homeostasis are Physical exercise, sleep and rest. Adequate rest and regular physical […]
How do you know if a reaction will increase entropy?
How do you know if a reaction will increase entropy? Therefore, if the reaction involves only gases, the entropy is related to the total number of moles on either side of the reaction. A decrease in the number of moles on the product side means lower entropy. An increase in the number of moles on […]
Why most hand cranked flashlights are made with LEDS?
Why most hand cranked flashlights are made with LEDS? LED light bulbs require less energy than standard light bulbs, and they are typically brighter, so hand-crank flashlights use the most efficient lighting system to get the most out of the power generated by hand cranking. How does a shaking flashlight work? The power for the […]
How is the Doppler effect used?
How is the Doppler effect used? The Doppler effect is used to measure the velocity detected objects where a radar beam is fired at a moving target. For example, the police use radar to detect a speeding vehicle. The velocity is calculated using the difference between the emitted frequency and the reflected frequency. What are […]