Answer:
1) in some cases, the same weigh boat will be used by all students: This is True, but the weigh boat must be properly labelled with the compound that is intended to be weighed.
2) the empty weigh boat must be tared (set to zero) before adding material.: This is true because to get accurate weight, it is required to tare the empty weigh boat so as to get the weight of the material alone and not factor in the weight of the empty weigh boat.
3) a paper towel should not be used to transfer product out of a weigh boat: This is true because you want to ensure that no impurities is mistakenly added into the material that is being weighed.
4) the balances in the lab can be zeroed out with a weigh boat on the balance: This statement is true because there must be a counter weight to zero an already existing balances.
5) plastic weigh boats can prevent spillage when weighing liquids into a beaker: This is True because the plastic would help to ensure that the liquids is directly poured into the beaker without spillage.
Explanation:
The correct answer is A. Working conditions
Explanation:
Frederick Herzberg's two-factor theory claims that one of the two main factors causing dissatisfaction in employees is hygiene factors. These factors are related to general working conditions, payments, and benefits, status, among others that depend mainly on the employer and the policies of the company. Moreover, hygiene factors differ from motivators (the second factor in the theory) because motivators are related to recognition, promotion, and similar that depend on the employers but also the performance of employees.
According to this, the factor that would be considered a hygiene factor is "working conditions" because this factor includes elements such as an old or inadequate building that depend mainly on the employer, which is a characteristic of hygiene factors. Also, other factors such as promotion, training or recognition are part of motivators rather than hygiene.
Answer: An iron receiver medium transmits it.
Explanation:
It is a process in which multiple analogue and digital signals are combined into one and then transmitted to the medium by an iron receiver. We distinguish between frequency, time, space and coded multiplexing.
Television uses multiplexing of video and audio signals and sends as a single signal into the ether, this process called frequency multiplexing. The ADSL modem does frequency multiplexing of the telephone signal while cell phones, on the other hand, use encoded multiplexing.
