Science

Refine Search

What is a good calendar with week numbers?

In addition to its desktop website, Calendar 365 offers a scaled-down calendar for mobile devices available at the same address. The website automatically detects mobile device access and adjusts the calendar accordingly. Calendar 365 also offers printable calendars in PDF format for free. The printable calendar is available with and without holidays marked. Click the tabs above the printable calendars to switch between the two options.

Continue Reading

What is the chemical formula for magnesium hydrogen sulfate?

The molecular weight of magnesium hydrogen sulfate is 218.45 grams per mole, and it has an exact mass of 217.9 grams per mole. Magnesium hydrogen sulfate is able to donate two hydrogen bonds, and it can accept eight when combining with other chemicals. Compounds that are related to magnesium hydrogen sulfate include magnesium and sulfuric acid. It is synthetically made in a lab and available from chemical supply companies.

Continue Reading

Is SO3 polar or non-polar?

Polarity arises due to a difference in electronegativity. The oxygen is more electronegative than the sulfur and attracts the electrons more strongly. The electrons of the S-O bond are distributed unevenly, giving the oxygen a negative charge and giving the bond a polarity.\nThe three S-O bonds lie in the same plane each 120 degrees away from the others. The trigonal planar geometry results in the cancellation of the polarities, and a non-polar molecule is formed.

Continue Reading

Is nitrogen homogeneous or heterogeneous?

Nitrogen is a colorless, odorless and tasteless gas. It is an inert gas under standard temperature and pressure. Nitrogen is ranked as the seventh-most-abundant element in the universe.\nHomogeneous mixtures have a uniform composition and the same properties throughout. Heterogeneous mixtures are not uniform, and have different properties throughout. Air is a homogeneous mixture of nitrogen, oxygen and small amounts of other gases.

Continue Reading

Is it possible to live with one kidney?

People born with only one kidney compensate for this by enlarging the second kidney. This is known as regenerative growth. The remaining kidney grows faster and larger to take on the work of two kidneys. Sometimes the remaining kidney doubles in size to meet this need.\nMost people with one kidney lead normal healthy lives, according to Kidney.org. Still, these individuals are advised to check their kidney function at least once a year.

Continue Reading

What are the main results of meiosis?

Organisms grow and replace most of their cells through standard cell division. This process is called mitosis, and the resulting products are similar to the parents that created them. In mitosis, each daughter cell has a full DNA strand. By contrast, meiosis only serves to create sex cells. The primary difference between mitosis and meiosis is that in the latter, the daughter cells only have half as many chromosomes as the parent cells do.\nThe reason that cells engage in meiosis and produce sex cells with half of the DNA that their parents had is because this gives the offspring twice as much..

Continue Reading

Where can you recycle used book batteries?

Book batteries are usually standard AG-3 and AG-10 button-type alkaline batteries used in watches and cameras. They usually do not contain mercury or hazardous materials or pose significant environmental risks. Many states allow consumers to dispose of them in household trash since there are no cost-effective recycling methods for handling them, and those turned in at recycling centers generally end up in landfills.\nOnly California requires consumers to recycle alkaline batteries and has a network of recycling centers and hazardous waste facilities that accept them. In New York, consumers may..

Continue Reading

What is artificial eutrophication?

A key player in artificial eutrophication is phosphates. These can be found in fertilizer, runoff from farm, detergents and waste water that has not been fully treated. This can mean that all or a large part of the wildlife in lakes and rivers can be killed or the water become so contaminated that wildlife cannot drink from it and humans can have a hard time treating it to make it drinkable.

Continue Reading

What is the main function of the heart?

The heart is made up of four chambers: the upper two are atria, and the lower two are ventricles. The two chambers on the right and the two on the left work together in pairs to move blood through the body. The right side moves oxygen lacking blood to the lungs to be saturated while the left side works to move the blood that is now fully loaded with oxygen back into the body. The heart also has four valves. These valves contain flaps to keep the blood from flowing the wrong direction in the heart. The two major arteries in the body bring blood to the right atrium that is lacking in oxygen. The..

Continue Reading

What is iodic acid?

Iodic acid exists in its pure state as a white solid. It is highly soluble in water and completely dissociates in aqueous solutions. The acid is formed by oxidizing diatomic iodine with nitric acid, chlorine, chloric acid or hydrogen peroxide. In each reaction, the diatomic iodine loses electrons and forms a complex with hydrogen and oxygen. Due to its ionic and soluble properties, ionic acid is also a very strong acid and has a pKa value of 0.75.

Continue Reading
Showing 291 to 300 of 10000 (1000 Pages)