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Oliga [24]
3 years ago
13

Which of the following questions is a scientific question?

Chemistry
2 answers:
JulijaS [17]3 years ago
7 0

Answer:

B

Explanation:

A is an opinion question.

C is another opinion question

D is another opinion question

B is the only acceptible question

vaieri [72.5K]3 years ago
4 0

Answer:

B.

Explanation:

Because the rest are going to be rated on rather than have an exact answer all of the others are relying on opinion.

You might be interested in
How are radioisotopes different from the standard form of an element
meriva

Answer:

Different isotopes of the same element have the same number of protons in their atomic nuclei but differing numbers of neutrons. Radioisotopes are radioactive isotopes of an element. They can also be defined as atoms that contain an unstable combination of neutrons and protons, or excess energy in their nucleus.

6 0
3 years ago
Silver nitrate solution reacts with calcium chloride solution according to the equation: 2 AgNO3 + CaCl2 → Ca(NO3)2 + 2 AgCl All
HACTEHA [7]

Answer:

14.33 g

Explanation:

Solve this problem based on the stoichiometry of the reaction.

To do that we need the molecular weight of the masses involved and then calculate the number of moles, find the limiting reagent and  finally calculate the mass of AgCl.

                      2 AgNO₃   + CaCl₂    ⇒   Ca(NO₃)₂   + 2 AgCl

mass, g                  6.97        6.39                                     ?

MW ,g/mol         169.87      110.98                                  143.32

mol =m/MW           0.10         0.06                                    0.10

From the table above AgNO₃ is the limiting reagent and we will produce 0.10 mol AgCl which is a mass :

0.10 mol x 143.32 g/mol = 14.33 g

5 0
4 years ago
Soap is made of molecules with atoms that share electrons equally at one end and atoms that have a slight charge at the other en
kicyunya [14]
Which could be soluble in soap?

Answer: Out of all the options presented above the one that represents which substance is soluble in soap is answer choice C) both because soap is part polar and part nonpolar.

I hope it helps, Regards.
6 0
3 years ago
Help help help ASFAP
gulaghasi [49]

Answer:

A directory of relatives' phone numbers

Hope this helps

Explanation:

5 0
3 years ago
A dosage is prescribed as 4.00 mg of medicine per kg of body weight.What dose should be given to a 112 pound person
vodka [1.7K]

Answer:

203.64 mg

Explanation:

112/2.2= 50.91

50.91x4.00= 203.64

4 0
3 years ago
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