It is physical change because ? has changed alone not with chemicals
Answer:
The correct answer is "from different social and ethnic backgrounds".
Explanation:
One of the basis of scientific research is that it is universal, which means that it can be proved and replicated in anywhere in the world. In this case, one part of the study of a drug's absorption in the blood is taking place in Europe, while other part is taking place in Japan. This means that scientific knowledge progresses due to the effort of scientists from different social and ethnic backgrounds. Actually, the most ambitious scientific researches, such as The Human Genome Project, require the simultaneous effort of multiple research institutes in the world.
Temperature change for water was slight compared to temperature change in metal because of specific heating capacities.
Specific heat capacity, moreover, known basically as specific heat, is the degree of the warm vitality required to extend the temperature of a unit amount of a substance by a certain temperature interim.
Regularly, the metal pole would be much hotter than the water. So, the conclusion can be made that the particular warm of metal is lower than the particular warm of water.
It requires less warm per unit mass to form a more noteworthy alteration in temperature for metal than it does for water.
Specific heat is additionally some of the time alluded to as heat capacity.
Casually, it is the sum of warm that must be included in one unit of mass of the substance in arrange to cause an increment of one unit in temperature. The SI unit of particular warm capacity is joule per kelvin per kilogram, J⋅kg −1 ⋅K −1.
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Answer:
Property Family Group
react vigorously with metals halogens 17
can be cut with a knife alkaly metals 1
don't react with any other elements noble gases 18
Explanation:
<u>Noble gases</u> are placed in the group 18 of the periodic table. This family is formed by He, Ne, Ar, Kf, Xe, Rn, and Og. Since they have their valance shell complete, they tend to not react with other elements. Nevertheless, nowadays it is known that they can form some compounds.
<u>Alkaly metals</u> are placed in the the group 1 of the periodic table. This family is formed by Li, Na, K, Rb, Cs, and Fr. They have 1 valence electron which makes them the most active metals. They are known because they are soft and can be cut by a knife, like they were butter.
<u>Halogens </u>are placed in the group 17 of the periodic table, This family is formed by F, Cl. Br, I, At, and Ts. They have seven valence electrons, which make them very active and ready to combine with metals either covalently or ionically.
Answer: 8 x 10^12
Explanation:
The prefix tera means 10^12. Each byte is 8 bits, so a terabyte is 8 x 10^12 bits.
