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just olya [345]
3 years ago
15

When a counterfeit detection pen is used on an authentic bill, what color does it turn?

Chemistry
1 answer:
NeX [460]3 years ago
3 0

Answer:

Explanation:

the answer is C, sometimes it can be brown

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When you exercise strenuously, your body produces excess heat. Describe what your body does to help prevent your temperature fro
VARVARA [1.3K]

Answer:

Your body can cool itself by sweating. When sweat evaporates, it lowers your temperature

Explanation:

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2 years ago
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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
Which of the following shows the valency of 1?
Oliga [24]

\huge \bf༆ Answer ༄

The element having valency of 1 is ~

  • Sodium (Na)
6 0
2 years ago
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What happens when an acid reacts with a base?
shepuryov [24]

Answer:

They neutralize each other

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2 years ago
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Is Al2O3 an acid or a base?
kirza4 [7]
 Al_2O_3 is aluminium oxide (also called aloxide, aloxite and alundum). It is neither acid nor base. It has amphoteric nature meaning it can act as an acid with bases and as a base with acids. It neutralises them to salts. 
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3 years ago
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