It is , how close a measurement is to an accepted value for the measurement !
Rate this the brainliest, Thank Youuu !
Answer: a chemical change. A physical change would be like crushing up a piece of paper, you could fold it back out until its flat. A chemical change would be something unreversable, i.e. going from all the different ingredients to a fully b asked cookie. The yellowing of pages is due to oxidization.
Explanation:
13111 is already an integer omitting the kg.
11. <span>Ionic compounds that dissolve in water conduct electricity because they break into ions that move freely.
12. </span><span>Solid metals are good conductors of heat and electricity.
13. </span>Molecular compounds that dissolve in water do not conduct electricity because no charged particles are present.
14. <span>Because the electrons in a molecule of hydrogen fluoride (HF) are more strongly pulled toward the fluorine atom, the molecule is polar.
</span>
15. A metal crystal consists of positively charged metal ions embedded in a "sea" of freely moving valence electrons.
16. <span>The properties of solid metals can be explained by the structure of and the bonding among the metal atoms. = True
17. </span><span>Orderly crystal shapes, high melting points, and electrical conductivity, when dissolved in water, are properties of ionic compounds. = True
18. </span><span>When electrons are transferred between two atoms, a covalent bond is formed. = False (</span><span>When electrons are shared between two atoms, a covalent bond is formed.)
19. </span><span>A low melting point is one property of molecular compounds. = True
20. </span><span>A nonpolar bond is formed when two atoms share electrons unequally. = False (</span><span>a polar bond is formed)</span>