A ___ is scientific knowledge established through direct observation and remains constant. Scientific knowledge can change when scientists ___
for the first one:
A. fact
B. hypothesis
C. theory
for the second one:
A. conduct experiments
B. generate hypothesis
C. hold different opinions
Answers: 2
Chemistry, 22.06.2019 10:30, shaylawaldo11
Apiece of metal with a length of 1.42 cm was measured using four different instruments. which of the following measurements is the most accurate?
Answers: 3
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Click the button that shows the correct relationship of the electron affinities of the elements sodium and phosphorus. sodium’s electron affinity value is more negative than the electron affinity value of phosphorus. phosphorus’ electron affinity value is more negative than the electron affinity value of sodium. this information cannot be determined using the periodic table. answer is b on e2020.
Answers: 3
Chemistry, 22.06.2019 19:30, dorindaramirez0531
Which liquid (h2o, h2o + soap, or h2o + salt) has the strongest cohesion and adhesion? (need now plz)
Answers: 1
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Na chemical reaction, activation energy increases the of the reactants. this outcome causes the particles to collide, which results in the of new products.
Answers: 2
A ___ is scientific knowledge established through direct observation and remains constant. Scientifi...
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