What can you put on ice to melt it? Rubbing alcohol or isopropyl alcohol, an ingredient found in most commercial deicing products, can be used on its own to melt ice. It has a freezing temperature of about -20 degrees Fahrenheit, which slows the freezing process of water. How do you break up rock salt […]
How long does it take for organic material to become oil?
How long does it take for organic material to become oil? With an estimated average sedimentation of 50 meters every million years, it takes 60 million years for dead animals to become liquid hydrocarbons. It is hardly surprising, therefore, that oil is classified as a non-renewable energy. source. How does organic material turn into oil? […]
Which element has the greatest number of valence electrons?
Which element has the greatest number of valence electrons? oxygen Which element has the smallest number of valence electrons? Metals How many valence electrons are in Li? one valence electron How many valence electrons are in arsenic? 5 valence electrons What is arsenic in electron configuration? [Ar] 3d¹⁰ 4s² 4p³ How many electrons are in […]
Where is the Nucleoid found?
Where is the Nucleoid found? The nucleoid region is the irregularly-shaped section of a prokaryotic cell where DNA is housed. It lacks the membrane that is found around the nucleus of eukaryotic cells. In addition to DNA, the nucleoid may also contain RNA, proteins, and enzymes that can be used for cellular processes. What are […]
How is space created?
How is space created? Around 13.8 billion years ago, all the matter in the Universe emerged from a single, minute point, or singularity, in a violent burst. This expanded at an astonishingly high rate and temperature, doubling in size every 10-34 seconds, creating space as it rapidly inflated. Is the Milky Way expanding? American astronomer […]
What are the 7 Supercontinents?
What are the 7 Supercontinents? During the existence of the Earth seven different supercontinents had been on the surface of the planet which will be presented now. Vaalbara. Kenorland. Columbia (Nuna) Rodinia. Pannotia. Pangaea. What caused Pangea to break up? About 180 million years ago the supercontinent Pangea began to break up. Scientists believe that […]
Are tall people smarter?
Are tall people smarter? Men on average are taller and have a higher IQ than women however, women’s IQ’s have been rising significantly more over the years and have even surpassed men in other countries such as Iceland. This means that health and culture may be more of a factor to intelligence than height. Do […]
What is considered a strong negative correlation?
What is considered a strong negative correlation? A perfect negative correlation has a value of -1.0 and indicates that when X increases by z units, Y decreases by exactly z; and vice-versa. In general, -1.0 to -0.70 suggests a strong negative correlation, -0.50 a moderate negative relationship, and -0.30 a weak correlation. What is the […]
What do the villi absorb?
What do the villi absorb? Villi that line the walls of the small intestine absorb nutrients into capillaries of the circulatory system and lacteals of the lymphatic system. Villi contain capillary beds, as well as lymphatic vessels called lacteals. Fatty acids absorbed from broken-down chyme pass into the lacteals. What will happen if the number […]
Why do objects with more mass fall faster?
Why do objects with more mass fall faster? As learned above, the amount of air resistance depends upon the speed of the object. Thus, more massive objects fall faster than less massive objects because they are acted upon by a larger force of gravity; for this reason, they accelerate to higher speeds until the air […]