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aleksklad [387]
3 years ago
6

What were elements characterized by in the 1860's

Chemistry
1 answer:
ahrayia [7]3 years ago
4 0

Answer:

Döbereiner singled out triads of the elements lithium, sodium and potassium as well as chlorine, bromine and iodine. He noticed that if the three members of a triad were ordered according to their atomic weights, the properties of the middle element fell in between those of the first and third elements.

Explanation:

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For the reaction Ti(s)+2F2(g)→TiF4(s) compute the theoretical yield of the product (in grams) for each of the following initial
Ostrovityanka [42]

Answer:

The answer to your question is 8.2 g of TiF₄

Explanation:

Data

Theoretical yield = ?

mass of Ti = 5 g

mass of F₂ = 5 g

Balanced chemical reaction

                  Ti(s) +  2F₂ (g)   ⇒   TiF₄(g)

Process

1.- Calculate the Molar mass of reactants and products

Ti = 48 g

2F₂ = 2( 19 x 2) = 76 g

TiF₄ = 48 + 76 = 124 g

2.- Calculate the limiting reactant

theoretical proportion Ti/F₂  = 48/76 = 0.63

experimental proportion Ti/F₂ = 5/5 = 1

Conclusion The limiting reactant is F₂ because the experimental proportion was lower than the theoretical proportion.

3.- Calculate the theoretical yield using the mass of F₂

                   76 g of F₂ --------------- 124 g of TiF₄

                     5 g of F₂ ---------------  x

                      x = (5 x 124) / 76

                      x = 8.15 g of TiF₄

4 0
3 years ago
Which one is an ionic compound?<br><br> A. CINe<br> B. NaP<br> C. Na2<br> D. NO<br> E. FeW
Lostsunrise [7]
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6 0
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Which structure represents nonane?
goldfiish [28.3K]

Explanation:

i don't understand what you wrote, but nonane is C9H20

7 0
3 years ago
How does parallax affect vision with each eye
kaheart [24]

Answer:

Depth Preception

Explanation:

Each eye sees a diffrent angle of a object. This is because the horizontal separation parallax of the eyes. If the object is close or near by the disparity will be huge.

Hope this helped you!

3 0
3 years ago
Which star reaches a greater apparent brightness?
BARSIC [14]

Answer:

he distance to a star can be found by comparing its luminosity to its apparent brightness.

Explanation: A star that is far away will be very dim compared to its luminosity. So it proves that  the ratio of its luminosity to apparent brightness will be greater than for a nearby star.

5 0
3 years ago
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