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Nataliya [291]
2 years ago
6

How many experimental trials are needed before a hypothesis can be accepted as true ?

Chemistry
2 answers:
Lorico [155]2 years ago
6 0
Approximately, or at least the test must be repeated until 3 times, to find an accurate average and hypothesis.
Lerok [7]2 years ago
4 0
3 times or more because you need to have 3 trails or more to be able to explain why your hypothesis is correct!!
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Which type of chemical reaction occurs in 2KCIO3 → AKCI + 302?
Oksanka [162]

Answer:

Decomposition reaction

Explanation:

Chemical equation:

2KClO₃ → 2KCl + 3O₂

The given reaction is decomposition reaction.

Decomposition reaction:

It is the reaction in which one reactant is break down into two or more product.

AB → A + B

Synthesis reaction:

It is the reaction in which two or more simple substance react to give one or more complex product.

Single replacement:

It is the reaction in which one elements replace the other element in compound.

AB + C → AC + B

Double replacement:

It is the reaction in which two compound exchange their ions and form new compounds.

AB + CD  → AC +BD

8 0
3 years ago
What factors affect the geometry of a molecule?
natali 33 [55]

The factors that affect geometry of a molecule are

> The number of bonding electron pairs around the central atom.

> The number of pairs of non-bonding ("lone pair") electrons around the central atom.

4 0
2 years ago
When one atom contributes both bonding electrons in a single covalent bond, the bond is called a(n) ____?
andre [41]
Coordinate covalent bond 
7 0
3 years ago
Read 2 more answers
Helllpppp!!!!!! Please
pav-90 [236]

Answer: (C) Statements (i) and (iii)

Explanation: According to byjus.com, group VII elements are known as Halogens.

Not only that, but bbc.co.uk says " Atoms of group 7 elements all have seven electrons in their outer shell. This means that the halogens all have similar chemical reactions ."

It may just be (b) though as these are chemical reactions.

3 0
2 years ago
Calculate the volume of a 0.323-mol sample of a gas at 265 K and<br> 0.900 atm.
Katarina [22]

Answer:

V = 7.8 L

Explanation:

Message

5 0
3 years ago
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