Another Word For Hypothesis Is
1. What's the difference between a hypothesis and a theory? a. "Theory" is another word for "fact;" "hypothesis" is another word
for "guess." b. Hypotheses can't be proven; theories can. c. Theories have been confirmed through tests; hypotheses haven't. d. Theories contain many hypotheses; a hypothesis only contains one theory. 2. Place the following steps in sequence: A) Recognizing a trouble; B) Testing a hypothesis; C) Drawing inferences a. A, C, B b. A, B, C c. B, C, A d. C, B, A three. In the phrase, "The scientific method is an analytic process for determining why things happen," what's the all-time synonym for "analytic?" a. Probable b. Amazing c. Breathless d. Logical 4. What must you do before you brand a hypothesis? a. Run an experiment b. Make observations c. Form a theory d. Draw conclusions v. If you were running an experiment to determine the temperature at which beans sprout the fastest, what would be the variable? a. The number of beans y'all constitute. b. The summit of the sprouts yous grow. c. The amount of h2o you give the beans. d. The temperature at which each bean is kept vi. You should run an experiment several times to make sure your results are consistent. In the preceding phrase, what does "consistent" mean? a. Obvious b. Perfect c. Unchanging d. Testable 7. What might crusade a theory to change over time? a. New laws passed by the government b. New merely untestable ideas c. Changes in public opinion d. The discovery of new evidence eight. Development is one instance of a theory. From what y'all know about the scientific method, what can you conclude most this biological theory? a. It'due south been tested many times. b. Scientists don't need to examination it anymore. c. No one is immune to test whether information technology's true or not. d. There is very little evidence to support it. nine. Which of the following is a testable hypothesis? a. Roses are more beautiful than violets. b. A plant needs at to the lowest degree v hours of sunlight per day to grow. c. Ice cream is delicious. d. Humans will someday land on Mars. 10. What happens if you lot exam a hypothesis multiple times and the information doesn't back up your prediction? a. Change the data to support your prediction b. Run the experiment again until you lot get the results you're looking for c. Conclude that your hypothesis cannot be proven d. Re-think your hypothesis 11. A controlled experiment is only an experiment in which all factors are held constant except for one 2 three 4 12. We make observations using our notebook figurer senses calculator
1 reply:
Reply:
b. Hypotheses can't be proven; theories can.
Explanation:
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Answer:
The equilibrium concentration of fluorine 0.027 mol/Fifty
Caption:
This is the equilibrium reaction:
Br₂(k) + F₂(chiliad) ⇄ 2 BrF(g)
Initially 0.127 0.127 -
Intially we have 0.127 moles in both reactants.
React x x 2x
Some corporeality (10) has reacted. As ratio is one:2, we accept double 10 in BrF.
So in equilibrium nosotros accept 2x of BrF (initially we don't have anything), and 0.127 - x of reactants.
Eq 0.127-x 0.127-10 2x
Let'due south brand Thousand expression:
K = [BrF]² / [Br₂] . [F₂]
54.vii = (2x)² / (0.127-ten) . (0.127-10)
54.vii = 4x² / (0.127-10)²
54.7 = 4x² / (0.127² - 2. 0.127x + x² )
54.7 (0.127² - 0.254x + x²) = 4x²
0.882 - 13.89x + 54.7x² = 4x²
0.882 - xiii.89x + 54.7x² - 4x² = 0
0.882 - 13.89x + 50.7x² = 0
a = fifty.7
b = -13.89
c = 0.882
Let's supersede the values in the quadratic formula
(-b +-√(b²-4ac)) / (2a)
-(-thirteen.89) +- √ ((-xiii.89)² - four . 50.7 . 0.882)) / 2. 50.7
x₁ = 0.173
ten₂ = 0.1
We addopt 0.1 every bit the result, because 0.127 - 0.173 is a negative number, it can't be possible a negative concentration
In equilirium
[Br₂] ; [F₂] = 0.127 - 0.1 = 0.027
[BrF] = 0.ane .2 = 0.2
Answer:
5 = 11.21 L
Explanation:
Given data:
Volume of helium = ?
Number of moles = 0.500 mol
Temperature = 273.15 Chiliad
Pressure of gas = ane atm
Solution:
Formula:
PV = nRT
R = full general gas constant = 0.0821 atm.L/ mol.K
V = nRT/P
5 = 0.500 mol × 0.0821 atm.L/ mol.Thousand × 273.fifteen K / 1 atm
V = eleven.21 50 / 1
V = 11.21 Fifty
Answer:
16 feet is 5.3 repeating yards
Caption:
Respond:
Caption:
The pressure is abiding, so we can use Charles' Law.
Data:
V₁ = 1.92 × x³ 50; T₁ = twenty °C
V₂ = ?; T₂ = 68 °C
Calculations:
(a) Convert temperatures to kelvins
T₁ = (20 + 273.15) K = 293.fifteen Thousand
T₂ = (68 + 273.15) K = 341.fifteen K
(b) Calculate the book
The new volume of the gas is .
i molecule of glucose contains 6 atoms of C, 12 atoms of H , and half-dozen atoms of 0.1 mole of glucose contains 6 moles of C atoms , 12 moles of H atoms , and 6 moles of O atoms .
Another Word For Hypothesis Is,
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