Answer:
D. The development of a solar heating system.
Explanation:
Warming a cup by adding hot tea is science, so is study of heat transfer so the answer has to be D
Answer:
Explanation:
Briefly, the scientific process starts by making an observation of a phenomenon, which leads you to question what is happening, and then to formulate a hypothesis.
The hypothesis is a reasonable explanation of the phenomenon, which relates a cause and a consequence, and that can be testable, and can result to be true or false.
Then, you design an experiment to test the hypothesis.
The experiments will give you a set of data which must be interpreted to conclude whether your hypothesis was true or false. This may be seen as the final step of the process, which gives the outcome of the scientific process. This conclusion must be based on reliable data and a logical.
If, your conclusion is clear, logically deducted from the data, using a correct analysis, your experiment was succesful. No matter whether the hypothesis resulted true or false.
Nevertheless, this is not really the final step, as now sharing the information with the scientific community is very important. I t might also happen that you want to iterate the process, to test a new hypothesis.
Ba²⁺(aq) + CO₃²⁻(aq) → BaCO₃(s)
First you need to count the atoms of each element in the reactantsa and the products. Then use coefficients and place them in front of the compunds until the equations looks fully balanced.
Hope i helped
Covalent compounds are those which are made up by sharing of electrons between them and the electronegativity of the elements which form covalent compounds are nearly same that is they are generally non-polar in nature whereas ionic compounds are formed by complete transfer of electrons from one element to the other and thus resulting in formation of ions of opposite charges that is cation (with positive charge) and anion (with negative charge). There is a large difference in electronegativity of the element involved in the formation of ionic compounds. They are held together by electrostatic force of attraction between them.
The conductivity of a substance is determined by the flow of electric charge. When the charged particles move that are present in the ionic compounds only in the conductivity apparatus they complete the circuit by the flow of electrons.
Hence, a conductivity apparatus test whether a solution has ionic or covalent substances in it as ions complete the flow of electrons to form a circuit.