When ethanol, C2H5OH (a component in some gasoline mixtures) is burned in air, one molecule of ethanol combines with three oxygen molecules to form two CO2 molecules and three H2O molecules. A) Write the balanced chemical equation for the reaction described. B) How many molecules of CO2 and H2O would be produced when 2 molecules ethanol are consumed? Equation? C) How many H2O molecules are formed, then 9 O2 molecules are consumed? What conversion factor did you use? Explain! D) If 15 ethanol molecules react, how many molecules O2 must also react? What conversion factor did you use? Explain!

Answer:

DNA ligase

Explanation:

The biochemist must have left out DNA ligase enzyme.

The DNA ligase enzyme is able to catalyze the formation of phosphodiester bonds and as such, capable of joining strands of DNA together to form a single strand.

The numerous DNA segments of a few nucleotides long observed by the biochemist must have been the replicated product of the lagging DNA strand. The lagging strand is replicated discontinuously in short strands because the DNA polymerase enzyme can only elongate primers in 5' to 3' direction. The short segments are known as Okazaki segments and are usually joined together to form a whole strand by the DNA ligase enzyme.

Hence, the missing component is the DNA ligase.

Answer:

3-bromobenzoic acid

Explanation:

In this case, we have to remember that the Br_2/FeBr_3  is a reaction in which we add Br into the molecule an electrophilic aromatic substitution. Additionally, we have a carboxylic acid in the benzene. This carboxylic acid is an ortho director because is a deactivating group (it removes electrons from the benzene ring). With this in mind, a "Br" atom would be added in an ortho position respect to the COOH group and we will obtain 3-bromobenzoic acid.

See figure 1.

I hope it helps!

Answer:

if you didnt like whatever the heck that answer was... heres the right The correct option is A

Towards the middle of the 19th century, the United States managed to round off the territory from the narrow Atlantic strip to the peaceful façade, by conquering the immense territories of the Southwest. Before the formidable pressure, fomented by the federal government and turned into an epic that immortalized the Hollywood industry with the legendary Far-West, of farmers, planters, merchants, adventurers, European immigrants and missionaries, the mythical "Frontera", considered the territory Savage par excellence, it became a powerful factor in the expansion of capitalism. However, the conquest of the West served not only to increase agricultural, livestock and mining space (gold rush in California), and to promote the demographic development, but also to forge the myths from which the new nation has been nurtured until today. American All this helped the development of the US trade with the rest of the world and especially with all of Europe.

Countries go to war for many reasons. When World War I was beginning in Europe, the United States was trading profitably with the Triple Entente and the Triple Alliance.

What is the Triple Alliance and the Triple Entente?

There was an alliance that included Germany, Austria-Hungary and Italy. This was known as the Triple Alliance.

The opposite of that was the Triple Entente. This involves of France, Russia and England. These brought about a lot of tensions that influence the war.

Answer:

with Morse code

Answer: "with Morse code".

Morse code is a technique for transmitting content data as a progression of on-off tones, lights, or snaps that can be straightforwardly comprehended by a learned audience or onlooker without special gear. It is named for Samuel F. B. Morse. Every Morse code sign speaks to either a content character (letter or numeral) or a prosign and is spoken to by a distinct sequence of dabs and dashes.

Explanation: