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kati45 [8]
3 years ago
6

Which of the following elements would you expect to be most reactive, based

Chemistry
1 answer:
ki77a [65]3 years ago
8 0

Answer:

C. Lithium

Explanation:

This image describes the trend in reactivity. Group 1 metals are always the most reactive so yeah :)

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find the percent yield,if 6.0g of Licl are actually produced and the theoretical yield is 35.4g of Licl.​
drek231 [11]

Answer:

Percent yield = 17%

Explanation:

Given data:

Actual yield of lithium chloride = 6.0 g

Theoretical yield of lithium chloride = 35.4 g

Percent yield = ?

Solution:

Formula:

Percent yield = (actual yield / theoretical yield )× 100

Now we will put the values in formula.

Percent yield = (6.0 g/ 35.4 g)× 100

Percent yield = 0.17 × 100

Percent yield = 17%

8 0
3 years ago
State how many mole ratios can be written for a reaction involving three substances.
Harrizon [31]
It's one ratio per substance so say if you had N2 + 3H2 > 2NH3 (chemical equation for the synthesis of ammonia) just look at the number coefficients(for 3H2 the coefficient would be 3  and for 2NH3 the coefficient would be 2 and so on)So it  would take 1mole of nitrogen to react with 3 moles of hydrogen In order to produce 2 moles of ammonia  so there would be 6 ratios you could write comparing two substances at a time In a reaction involving 3 substances ^^; hope this helps somewhat ^^;
6 0
3 years ago
Which of the following statements is true about the relationships between photon energy, wavelength, and frequency?
iris [78.8K]

Answer: The Answer is A.

Explanation:

The amount of energy is directly proportional to the photon's electromagnetic frequency and thus, equivalently, is inversely proportional to the wavelength. The higher the photon's frequency, the higher its energy. Equivalently, the longer the photon's wavelength, the lower its energy.

Hope this Helps!

8 0
3 years ago
Qualitative measurements involve numerical measurements while quantitative measurements record descriptions.
Liono4ka [1.6K]
This is false quantitative is numerical while qualitative is descriptive
6 0
3 years ago
W(OH)2 + 2 HCl → WCl2 + 2 H2O
Afina-wow [57]

The amount of W(OH)2 needed would be 448.126 g

<h3>Stoichiometric calculation</h3>

From the equation of the reaction:

W(OH)2 + 2 HCl → WCl2 + 2 H2O

The mole ratio of W(OH)2 to HCl is 1:2

Mole of 150g HCl = 150/36.461

                                 = 4.11 moles

Equivalent mole of W(OH)2 = 4.11/2

                                           = 2.06 moles

Mass of 2.06 moles W(OH)2 = 2.06 x 217.855

                                                = 448.188g

More on stoichiometric calculations can be found here: brainly.com/question/8062886

7 0
2 years ago
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