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jarptica [38.1K]
4 years ago
15

4. What type of evidence do you think would be most difficult to collect

Chemistry
2 answers:
Tanzania [10]4 years ago
7 0

Answer:

The type of evidence that is more difficult to collect is evidence known as trace, for example, fibers, hair, or signs of dirt.

Explanation:

For the collection of this type of evidence, specialized equipment such as special vacuum cleaners, tweezers, etc. are used, all with the purpose of carrying out the collection of trace evidence. This type of evidence is characterized by being very difficult to find.

mars1129 [50]4 years ago
3 0

I think it is trace evidence since it is really small and hard to find.

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During a change of state, the temperature of a substance _____.
Natali5045456 [20]
Hello,

Your questions states:

During a change of state, the temperature of a substance _____?

In which you gave us some choices:

A. decreases if the arrangement of particles in the substance changes.
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D. increases during melting and vaporization and decreases during freezing and condensation.

Your answer would be:

B. remains constant until the change of state is complete.

Your explanation/Reasoning:

It absorbs the energy, then after the phase changes it then increases the temperature all over again.

Have a nice day:)

Hope this helps!

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Based on the chemical equation, use the drop-down menu to choose the coefficients that will balance the chemical equation: ()zn
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Based on the chemical equation, to balance the given equation we should use 2 as a coefficients of HCl on reacatnt side of the reaction.

<h3>What is balanced equation?</h3>

Balanced chemical equations are those equation in which each entities are present in same amount on reactant side as well as on the product side of the chemical reaction.

Given chemical reaction is:

Zn + HCl → ZnCl₂ + H₂

In the above reaction equation  is not balanced as number of chlorine and hydrogen atoms are not equal on both sides, so balanced equation will be:

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Hence we add 2 as a coefficient of HCl to balance the equation.

To know more about balance equation, visit the below link:

brainly.com/question/15355912

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