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VLD [36.1K]
3 years ago
5

1) Which of the following is NOT a step in the scientific method *

Chemistry
2 answers:
Alex_Xolod [135]3 years ago
7 0

Answer:

applying for a license

Colt1911 [192]3 years ago
3 0

Answer:

Applying for a license

Explanation:

This is because you have to have observations,hypothesis and a scientific equation when using The Scientific Method.

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Which set of coefficients will balance this chemical equation? __PbS(s) + __O2(g) → 2PbO(s) + 2SO2(g)
Elina [12.6K]

A two in both of the blanks will balence the equation. It will look like so:


2PbS(s) + 2O2(g) --> 2PbO(s) +2SO2(g)


6 0
3 years ago
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Is hydrogen a solid liquid or gas?
Anestetic [448]
It can be in either state.....
8 0
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A) Calculate the molar mass of ethanol, C2H5OH and water, H20.<br> C2H5OH =<br> H2O =<br> I
Mrrafil [7]

Answer:

1-46

2-18

Explanation:

c=12 H=1 O=16

ethanol (12×2)+(6×1)+(16)=46

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7 0
3 years ago
Write a balanced net ionic equation for the reaction of aqueous solutions of baking soda (NaHCO3) and acetic acid.(A) HCO3–(aq)
IgorC [24]

<u>Answer:</u> The correct answer is Option C.

<u>Explanation:</u>

Net ionic equation of any reaction does not include any spectator ions.

Spectator ions are defined as the ions which does not get involved in a chemical equation. They are found on both the sides of the chemical reaction when it is present in ionic form.

The chemical equation for the reaction of sodium bicarbonate and acetic acid is given as:

NaHCO_3(aq.)+CH_3COOH(aq.)\rightarrow CH_3COONa(aq.)+H_2O(l)+CO_2(g)

Ionic form of the above equation follows:

Na^+(aq.)+HCO_3^-(aq.)+CH_3COO^-(aq.)+H^+(aq.)\rightarrow CH_3COO^-(aq.)+Na^+(aq.)+H_2O(l)+CO_2(g)

As, sodium and acetate ions are present on both the sides of the reaction. Thus, it will not be present in the net ionic equation and are spectator ions.

The net ionic equation for the above reaction follows:

HCO_3^-(aq.)+H^+(aq.)\rightarrow CO_2(g)+H_2O(l)

Hence, the correct answer is Option C.

8 0
3 years ago
A transverse wave is traveling from north to south. Which statement could be true for the motion of the wave particles in the me
Agata [3.3K]
<span>C. Their direction of motion is south and north. </span>
7 0
3 years ago
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