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3 years ago

YOU MUST SHOW ALL STEPS OF THE G.U.E.S.S. METHOD CORRECTLY. NO UNITS=WRONG ANSWER

Chemistry

1 answer:

Sergeeva-Olga [200]3 years ago

4 0

Answer:

The equation for wave speed can be used to calculate the speed of a wave when both wavelength and wave frequency are known. Consider an ocean wave with a wavelength of 3 meters and a frequency of 1 hertz. The speed of the wave is: Speed = 3 m x 1 wave/s = 3 m/s.

SO... take your meters and hezert and do tha same

Explanation:

Plz mark me as brainlyist

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According to there chemical properties

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3 years ago

Energy produced by nuclear fusion and fission

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Which of the following statements provides the BEST explanation for the many chemical similarities between two elements in a Mai

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Answer:

(b) Both have the same number of valence electrons.

Step-by-step explanation:

We find the most striking chemical similarities between two Main Group elements when they are in the same Group of the Periodic Table.

Elements in the same Group have the same number of valence electrons.

(a) is wrong, because elements in the same group have different masses.

(d) is wrong, because elements in the same Group must be in . different Periods.

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3 years ago

chemical properties a. include changes of state of a substance b. include mass and color c. include changes that alter the ident

8_murik_8 [283]

C. Include changes that alter the identity of a substance.

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3 years ago

Freon, a very useful refrigerant, is produced in the following reaction:

Svetach [21]

Answer:

The chemistry will need 2*10⁶ moles of antimony trifluoride.

Explanation:

The balanced reaction is:

3 CCl₄ (g) + 2 SbF₃ (s) → 3 CCl₂F₂(g) + 2 SbCl₃ (s)

By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of each compound participate in the reaction:

CCl₄: 3 moles
SbF₃: 2 moles
CCl₂F₂: 3 moles
SbCl₃: 2 moles

You can apply the following rule of three: if by reaction stoichiometry 3 moles of freon are produced by 2 moles of antimony trifluoride, 3*10⁶ moles of Freon are produced from how many moles of antimony trifluoride?

$moles of antimony trifluoride=\frac{3*10^{6} moles of freon*2 moles of antimony trifluoride}{3 moles of freon}$

moles of antimony trifluoride= 2*10⁶

The chemistry will need 2*10⁶ moles of antimony trifluoride.

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3 years ago