Question

please please answer these questions​

Answer 1

Explanation:

Instrument which is used to measure the magnitude of current flowing in a circuit is join in the series in a circuit to the entire current of the circle passes through it simple curly represented by a letter in closed in circle and shown in figure 9.7 the Plus and marked at. Terminal of indicate the current must enter in through this terminal therefore. The terminal is connected to hypertension terminal of current source and Amrita must have very low resistance resistance of current Mein not active and join in the current is calculated dial on which the deflection of needle show the magnitude of current in a circuit symbol representation of ammeter different kind of ammeter or required to weather alternating current and direct current is a current of cost and narrative flow in One Direction current rate of flow of charge acrostic acrostic sonometer direction of flow of current SI unit of charge is ampere. The the the charge is -1.9 - 1.6 into 10 to the power minus 19 coulomb. Ammeter is a voltmeter kya hota voltmeter shown in is used to measure the potential difference between two points in a circuit is connected across a group. Between the potential is to be measured parallel. It is represented by little be used in a circle.

Answer 2

Answer:

Photohalogenation of Methane

Explanation:

Unlike alkenes and alkynes, alkanes are relatively stable and unreactive species. However, some reactions do exist and one notable example is the photohalogenation reaction. In this reaction, a chlorine diatomic atom is mixed with the alkane in the presence of some sort of energy source, usually light. As an example, let us use the simplest alkane known as methane. When methane reacts with chlorine in the presence of light, a radical reaction is induced and the product of the first propagation step is methyl chloride. However, when ample amount of chlorine is available for use and the reaction is given enough time, three more propagation steps can take place, leading to the formation of the final product, carbon tetrachloride. If we examine the first propagation process in the series, we will see that the first step is slightly endothermic, meaning that the bonds formed are less stable than the bonds broken. So why exactly does this process take place? The answer lies in the analysis of the second step of the propagation process. This highly exothermic step overpowers the first endothermic step and produces an overall exothermic reaction. In fact, the little amount of chain-carrying product formed in the first step of the propagation step reacts vigorously on the reactant side of the second step, forming the methyl chloride.