The correct option is C. A scientist can get an unexpected results from an experiment as a result of errors which have been committed while carrying out the experimental procedure. So, the best thing for the scientist to do is to repeat the experiment, going over the analysis carefully.
The word is <u>an individual</u> of a species
The answer is; a layer of granite
This layer so granite is impervious hence is not porous. Due to its non-porosity, water cannot pass through it. These types of rocks are important in aquifers. When an impervious rocks sandwich a pervious layer or are below a pervious rock, an aquifer is created.
carbohydrate <span>acts as an energy storage molecule</span>
Answer: Mass is more than 145 g but less than 160 g
Explanation: Acid and limestone reacts forming water, salt and
Carbon dioxide CO2. Because CO2 is gas it is bubbled away from
glass and that's why mass is less than 160 g. Because limestone
releases CO2 and products from acid remain in solution, mass is more than 145 g. If amount of acid in moles is enough, all limestone reacts.
Roughly 44% of mass of limestone CaCO3 forms CO2 and we can estimate mass of gas is 0.44·15 g = 6,6g , so mass would be 153 g
