How many grams are in 0.0236 moles of a compound with a molar mass of 160.7 g/mol? (Do not include units.) How many grams of a 19% sugar solution contain 73.0 grams of sugar? If a student weighs 18 g of aluminum and needs twice as many atoms of magnesium as she has of aluminum...
How many hydrogen atoms are present in the molecule shown? What is the charge on the polyatomic ion hydrogen carbonate? What is the total number of atoms (not molecules) present in 0.35 mol of H2O? What is the chemical formula for ammonium sulfate? How many magnesium atoms are in the form...
The chemical bonds between the atoms are shared pairs of electrons. Chemical bonds are much like springs: They can bend and stretch. These properties are important in detecting ethanol in a sample by infrared (IR) spectroscopy. Read More Types of Devices: Intoxilyzer Diagram of the Intoxi...
Many formulas use Latin and Greek prefixes to identify the number of atoms or ions in the compound. Common prefixes include mono (one or single), bi or di (two or double), tri (three), tetra (four), penta (five), hexa (six) and hepta (seven). For example, carbon monoxide has one...
[60,61] reported that the LAL-obtained Ag40Cu60 alloy particles are composed of many nanosized grains with sizes of ∼3±0.5 nm (Figure 8(b)) due to the large size differences (Ag:Cu=144:128; pm) in the silver and copper atoms. These segregated alloy particles with enormous ...
element (e.g., the sulfate ion). If so, look up its name in the table under the Resources section below. Each name has a symbol that corresponds to it. Sulfate, for example, is SO4 -2 (with the -2 as a superscript and the 4 as a subscript, since there are 4 oxygen atoms). ...
Inflation refers to the process of expanding a molten blob of glass by injecting a small volume of air in it. Since atoms in the liquid glass are attached via strong chemical bonds in a random and disordered network, molten glass isviscous enoughto be blown. It slowly hardens as it cools...
17.Toothpaste– After reading many online testimonials of people using toothpaste on cold sores, as well as articles written by doctors, I now have a detailed overview of this subject matter. Here are the key concepts: Some bloggers claim the ingredient sodium lauryl sulfate (SLS) found in man...
But not everybody is able to pay more attention, or aware of just how many scams there are on eBay.I would also be willing to bet, given the long and depressing list of large green numbers in a completed-listings search for this gold-plated tat, that some people have spent a lot of...
The chemical bonds between the atoms are shared pairs of electrons. Chemical bonds are much like springs: They can bend and stretch. These properties are important in detecting ethanol in a sample by infrared (IR) spectroscopy. Read More Types of Devices: Intoxilyzer Diagram of the Intoxi...