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asambeis [7]
3 years ago
14

An example of a change of state is __________. *

Chemistry
2 answers:
tankabanditka [31]3 years ago
7 0
Changes of state are physical changes in matter. They are reversible changes that do not change matter's chemical makeup or chemical properties. For example, when fog changes to water vapor, it is still water and can change back to liquid water again.please mark brainliest if correct
NeX [460]3 years ago
3 0

Answer:

ice cube melting

Explanation:

bcoz it's a chemical change

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Would gallium, atomic #31, likely form a action or an anion?
Stolb23 [73]
Assuming you meant cation and not action, gallium would most likely form a cation because it is a group A element
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Вычислить равновесные концентрации частиц в растворе, содержащем 0,01 моль/л Cu(NO3)2 и 1,0 моль/л NH3.
Wewaii [24]

Answer:

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Explanation:

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3 years ago
Consider the statement: "Copper is a red-brown element obtained from copper sulfide ores by heating the ores in air, which forms
Misha Larkins [42]

Answer:

1, just I) color.

Explanation:

Physical properties are the properties that can be observed without changing the composition of a substance, such as color, temperature, density, and boiling point.

A physical change is a change in the substance that only modifies its aggregation state, such as solidification, and boiling.

Chemical properties are the properties that need a reaction to being observed, such as the combustibility, which needs a combustion reaction to being quantified.

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4 0
3 years ago
Balance these equations:
MatroZZZ [7]

Explanation:

H² + Br² = 2HBr

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hope this helps you

6 0
3 years ago
Read 2 more answers
1) How many moles are in 4.0x10^24 atoms?
-Dominant- [34]

Answer:

<h2>6.64 moles</h2>

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

n =  \frac{N}{L} \\

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

n =  \frac{4 \times  {10}^{24} }{6.02 \times  {10}^{23} }   \\  = 6.644518...

We have the final answer as

<h3>6.64 moles</h3>

Hope this helps you

3 0
3 years ago
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