Answer:
Option B. is the right answer.
Explanation:
Before developing a new technology, an engineer has to evaluate the advantages and disadvantages of the chemical used in order to clean water bodies. If the chemical has more disadvantages as compared to advantages, so its usage will be avoided while if the chemical does not harm the marine organisms of the ocean so it can be used for the purpose of cleaning. So we can say that first the engineer has to study the chemicals.
Answer:
2:1
Explanation:
The Law of Multiple Proportions states that when two elements A and B combine to form two or more compounds, the masses of B that combine with a given mass of A are in the ratios of small whole numbers.
That is, if one compound has a ratio r₁ and the other has a ratio r₂, the ratio of the ratios r is in small whole numbers.
1. Compound 1
Mass of O = 100.0 - 61.4 = 38.6 g

2. Compound 2
Mass of O = 100.0 - 76.1 = 23.9 g

3. Ratio of the ratios

For example. the compounds might be VO₂ and VO.
The answer is that they havent reached their full form yet.
Answer:
c
O2: 7 mol
CO2: 4 mil