Would different beans, other then mug bean make the bean beetles produce less offspring. In this group project we conducted a hypothesis that argues, If using different beans for reproduction other then the mug bean, then they will produce less offspring. the dependent vearable is number of offspring and the independent veraible is the different type of beans. when conducting this experiements we used method of division, replication, and messureing.
The Periodic Table is a table of the chemical elements arranged in order of atomic number, usually in rows, so that elements with similar atomic structure (and hence similar chemical properties) appear in vertical columns. The Periodic Table illustrates the Periodic Law by showing the pattern of the elements in order by atomic numbers. It also shows what elements have similar atomic structure by appearing in the vertical columns. The Periodic Law is shown in the Periodic Table by revealing what elements fall in order, due to similar properties occurring at regular intervals. It is used to tell which elements go where on the Periodic Table and which elements will react with each other if combined together. It also shows which elements will be grouped together by the similarity of their atomic structure. As shown the Periodic Law is well illustrated in Periodic Table in order for it to be used
2. The color of the copper carbonate hydrate as it was heated can help identify the product?
The percent composition of a compound can be found by determining the mass of each element within that compound, and with this information, the empirical formula can be determined. The lab consisted of obtaining a magnesium ribbon and having it undergo chemical reactions to create solid magnesium oxide with the aim being identifying the percent composition and empirical formula of the compound.
Bromination is a type of electrophilic aromatic substitution reaction where one hydrogen atom of benzene or benzene derivative is replaced by bromine due to an electrophilic attack on the benzene ring.
The purpose of the experiment was to understand how strong a bessbug by using weights and observing the time the best bug takes to travel to a certain distance.
There are a myriad of ways of identifying an element. One of these methods is the study of colors emitted by the element when exposed to an energy source. Flame tests are a fast and reliable method of determining the identity of unknown metal ions. The Flame Test was designed to test different metal ions to observe the colors that each chemical makes. The Flame Test was also used to identify unknown metallic ions based on the color of the flames produced. In this lab, Petri dishes each containing a different metal ion were doused in ethanol and lighted using a lighter. The metal salts each burned a different color in the fire based on the identity of the ion. By placing atoms of a metal into a flame, electrons in an atom can absorb energy from
In this lab we used two processes called Diffusion and Osmosis. Diffusion is the movement of molecules from areas of high concentration to areas of low concentration. Diffusion is a process that requires no energy and involves smaller non-polar molecules. In Figure 1 you can see the molecules spreading throughout the glass from the area of high concentration, so that the areas with low concentration are filled evenly as well. The other process was osmosis. Osmosis is the diffusion of water through a membrane from an area of high contraction to an area of low concentration. Osmosis happens in three different environments. Osmosis is like diffusion in it requiring no energy.
In this lab there were five different stations. For the first station we had to determine an unknown mass and the percent difference. To find the unknown mass we set up the equation Fleft*dleft = Fright*dright. We then substituted in the values (26.05 N * 41cm = 34cm * x N) and solved for Fright to get (320.5g). To determine the percent difference we used the formula Abs[((Value 1 - Value 2) / average of 1 & 2) * 100], substituted the values (Abs[((320.5 - 315.8) / ((320.5 + 315.8) / 2)) * 100]) and solved to get (1.58%). For the second station we had to determine the distance required to balance the system and the percent difference. To find the unknown distance we set up the equation Fleft*dleft = Fright*dright. We then plugged in the values (11.35 N * x cm = 48cm *
Atomic weight or atomic mass is basically the average mass of atoms of an element.
investigation determines that the product weighs more than the sample and why this occurs. In
I don't accept my current grade, because it is wrong, and my grade should be higher than D in anyhow according to Dr.Scandale's grading policy. The following explanation is made on my behalf.
In this lab I concluded that the mass (kg) was the independent and the weight (N) was the dependent, because when you read the spring scale it depended on the amount of mass that was hanging from the spring scale.
First, we set up the equation xZn(s) + yHCl(aq) → ZnxCly (s) + y/2H2(g) . We knew the empirical formula for zinc chloride is ZnCl8. Based on the law of conservation of matter, we got the balanced equation:
Harold Urey’s discovery of deuterium is perhaps his most revolutionary discovery. Not only did Urey receive a Nobel Prize for his work towards hydrogen-2, deuterium would go on to become invaluable both to chemists’ understanding of the elements, and the field of chemistry as a whole. Urey’s pursuit of deuterium began in 1931, after his interest was piqued by a scientific journal that discussed the supposed existence of the isotope. Using the Balmer series, which is the series of lines in the hydrogen atomic emission spectrum, Urey and a colleague by the name of George Murphy, calculated where hydrogen-2’s emission lines should be located. They determined that the isotope’s emission lines would be “redshifted” (shifted