Answer:
C) Temperature and Kinetic Energy.
Explanation:
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In this case, according to the generic heating curve on the attached file, it possible to see that on the point C, whereas the line is diagonal, the temperature increases, but also the kinetic energy increases because the molecules gain energy due to the increase of the temperature. It is important to say that on flat lines, like those on B and D, the phase change takes place and just the potential energy change.
In such a way, we infer that the answer is C) Temperature and Kinetic Energy.
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Answer:Adversity is a great tool of change.
Explanation:
Adversity leads to growth and change. It makes you think rightly ,manage situations and make decisions that can bring about change. Adversity can also cause positive change in attitude and behaviour towards .individuals,friends and family.
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The mass percent of a NaCl solution prepared by mixing 47.0 g NaCl with 125.0 Ml of pure water is 27.3%
calculation
% mass =mass of solute / mass of the solvent x 100
mass of the solute(NaCl )= 47 g
mass of the solvent = mass of pure water + mass of NaCl
convert 125 Ml of pure water to grams
that is 1 ml = 1 g therefore 125ml = 125 g
mass of solvent is therefore= 125g+ 47=172g
therefore the % mass = 47/172 x100 = 27.3 %
Explanation:
When there occurs sharing of electrons between two chemically combining atoms then it forms a covalent bond. Generally, a covalent bond is formed between two non-metals.
An ionic bond is defined as the bond formed due to transfer of one or more number of electrons from one atom to another. An ionic bond is always formed between a metal and a non-metal.
Every atom of an element will have orbitals in which electrons are found. These orbitals are known as energy level.
A molecule is defined as the smallest particle present in a substance or atom.
A metallic bond is formed due to mobile valence electrons shared by positive nuclei in a metallic crystal.
Thus, we can conclude that given statements are correctly matched as follows.
1). a chemical bond formed by the electrostatic attraction between ions - ionic bond
2). a chemical bond formed by two electrons that are shared between two atoms - covalent bond
3). the orbitals of an atom where electrons are found - energy level
4). the smallest particle of a covalently bonded substance - molecule
5). a bond characteristic of metals in which mobile valence electrons are shared among positive nuclei in the metallic crystal - metallic bond