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marysya [2.9K]
3 years ago
14

Which statement best represents a hypothesis?

Chemistry
1 answer:
mr_godi [17]3 years ago
4 0

Answer:

B

Explanation: B

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What is the difference between fusion and melting?
photoshop1234 [79]
Fusion is joining two or more things together in resulting of the form of one thing
Melting is to make something liquefied by the use of heat
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3 years ago
How many amps are required to produce 75. 8 g of iron metal from a solution of aqueous iron(iii)chloride in 6. 75 hours?
Shalnov [3]

The amount of current required to produce 75. 8 g of iron metal from a solution of aqueous iron (iii)chloride in 6. 75 hours is 168.4A.

The amount of Current required to deposit a metal can be find out by using The Law of Equivalence. It states that the number of gram equivalents of each reactant and product is equal in a given reaction.

It can be found using the formula,

m = Z I t

where, m = mass of metal deposited = 75.8g

            Z = Equivalent mass / 96500 = 18.6 / 96500 = 0.0001

             I is the current passed

              t is the time taken = 75hour = 75 × 60 = 4500s

On subsituting in above formula,

75.8 = E I t / F

⇒ 75.8 = 0.0001 × I × 4500

⇒ I = 168.4 Ampere (A)

Hence, amount of current required to deposit a metal is 168.4A.

Learn more about Law of Equivalence here, brainly.com/question/13104984

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7 0
2 years ago
<img src="https://tex.z-dn.net/?f=%5Csf%5Clarge%20%5Cgreen%7B%5Cunderbrace%7B%5Cred%7BQuestion%7D%7D%7D%3A" id="TexFormula1" tit
Lesechka [4]

Answer:

Transition elements are elements which have partially filled d-orbitals and form at least one or more stable ions.

6 0
3 years ago
Organize the following species in terms
ser-zykov [4K]

Explanation:

  1. F Cl Br
  • ionization energy decreases we move down the group
  • so Br<Cl<F

2. Na K Li

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  • so K<Na<Li

3. C N O F

  • ionization energy increases as we move across the peroid
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plz mark as brainliest if it helps

6 0
3 years ago
Can you determine the molecular formula of a substance from its percent composition
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The percent composition<span> gives you only the empirical formula. 
</span><span>To get the molecular formula, you must either know the molecular mass or do an experiment to find it.</span>
8 0
3 years ago
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