Answer:
1) 6(1/2)
2) 8(4/5)
Explanation:
1) 7 - 1/2 = 7/1 - 1/2 = 14/2 - 1/2 = 13/2 = 6(1/2)
2) 11(2/5) - 2(3/5) = 57/5 - 13/5 = 44/5 = 8(4/5)
Atoms in the liquid water move more slowly.
Atoms in the liquid water move more quickly.
More hydrogen bonds form between the molecules.
When water changes from a liquid to a solid, the atoms move slower and form more hydrogen bonds, giving ice its solid structure.
When liquid water transforms to a solid state (i.e. ice), the motion between water molecules changes. Hydrogen bonds are actually formed, not broken. Because of the decrease in temperature, atoms in the liquid water start to move more slowly, not quickly. This slower movement allows for more hydrogen bonds to form between the water molecules, which is what essentially gives ice its solid structure.
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B.) property
C.) protein
D.) raw material
Answer:
particle
Explanation:
if there were more than one kind of particle, it would be a compound.
Accuracy relates to how close a measurement is to the true value, whereas precision refers to how similar multiple measurements are to each other. Assuming Student A's measurements were close to 47.32g and each other, they were both accurate and precise. Student B's would be imprecise but precise if they were not close to 47.32g but close to each other, while Student C's measurements would be neither if they were scattered and not close to 47.32g.
In Physics, when we discuss measurements, two important concepts come up: accuracy and precision. Accuracy refers to how close a measurement is to the actual, true value, in this case, 47.32g. Precision, on the other hand, signifies how close several measurements are to each other, irrespective of how accurate they are.
For each student's weighings:
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According to one acid-base theory, the H2O molecule
(1) accepts H+ ions (3) donate H+ ions
(2) accepts OH- ions (4) donates OH- ions
The statement, that describes acid-base theory in which the H2O molecule is "accepts ions."
An acid is a compound that accepts a pair of electrons. A base is a generator of electron pairs. This is the broadest theory of acids and bases. Water can serve as both an acid and a base in solution, and it can also be both an acid and a base to itself. Water takes hydrogen ions and behaves as a base when coupled with an acid. When water is combined with a base, it gives hydrogen ions and so behaves as an acid. Using the balanced equation, the water molecule acts a acid which accepts the hydrogen ion. to form hydronium ion.
Hence the correct option is 1.
Learn more about acid-base theory here
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