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ioda
3 years ago
13

Max discovered a beaker full of transparent liquid in the science lab. He hypothesized that since the liquid is transparent like

water, it is water. He shared this conclusion with his friends. His friends questioned his conclusion, but Max had no evidence to back his thoughts. What step did Max miss in his scientific methods?
A.
Make an initial observation.
B.
Test a hypothesis by gathering data.
C.
Form a conclusion.
D.
State a hypothesis.
Chemistry
1 answer:
S_A_V [24]3 years ago
6 0

B. Test a hypothesis by gathering data

Seriously though, what type of guy thinks "oh hey there's a transperent liquid in the science lab? yeah it's water."

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The boiling points for the homonuclear diatomic molecules in the halogen family are 85 K, 238 K, 332 K, 457 K and 610 K. Which s
patriot [66]

Answer:

Cl_{2} has boiling point of 238 K

Explanation:

Boiling point depends on different intermolecular force such as molecular wight, dipole-dipole attraction force, hydrogen bonding, ionic attraction force.

Homonuclear diatomic molecules are covalent non-polar molecules and thereby free from dipole-dipole attraction force, hydrogen bonding and ionic interaction forces.

Hence, boiling point of homonuclear diatomic molecules depends solely on molecular weight.

We know, higher the molecular weight of a molecule, higher will be its boiling point. This phenomenon can be realized in terms of increasing london dispersion force with increase in molecular weight.

Decreasing order of molecular weight of halogen molecules :

I_{2} > Br_{2} > Cl_{2} > F_{2}

So, decresing order of boiling point of halogen molecules:

I_{2} > Br_{2} > Cl_{2} > F_{2}

Hence Cl_{2} has boiling point of 238 K

4 0
3 years ago
1) List the number of protons, neutrons, and electrons in Carbon-13.
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1) Carbon-13: 
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2)Atomic mass of element X:
   (55*10+56*20+57*70)/100=56.6
4 0
3 years ago
Which of the following statements of kinetic molecular therapy explains the compresssbilty of gases compared to liquids and solu
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Search on google

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7 0
3 years ago
Explain the difference between a physical property and chemical property. Give examples of each.
MA_775_DIABLO [31]
A physical property is what a substance is like; it's directly observable. On the other hand, a chemical property is how a substance behaves; its reactivity.

Examples of a physical property are: color, texture, boiling point, freezing point, and melting point.

Examples of a chemical property are: flammability, combustion, and formation of a precipitate.

3 0
3 years ago
How many grams of h3po4 are in 255 ml of a 4.50 m solution of h3po4?
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H3PO4 has molecular weight of approximately 98 grams per mole. 4.50 M is equal to 4.50 mole per 1000 mL solution of H3PO4. 255 mL times 4.50 mol /1000 mL times 98 g/mol is equal to 112.455 grams. Note that I automatically equate 1 Liter to 1000 mL since the given volume is in mL for easier computation.

7 0
2 years ago
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