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kap26 [50]
3 years ago
12

Recording a person’s fingerprints using ink or digital imaging is called a(n)____.

Chemistry
1 answer:
NNADVOKAT [17]3 years ago
5 0
It is called a dactyloscopy
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7.) A syringe initially holds a sample of gas with a volume of 285 mL at 355 K and 1.88 atm. To
marysya [2.9K]

Answer:

T₂ = 721 k

Explanation:

Given data:

Initial volume = 285 mL

Initial pressure = 1.88 atm

Initial temperature = 355 K

Final temperature = ?

Final volume = 435 mL

Final pressure = 2.50 atm

Formula:  

P₁V₁/T₁ = P₂V₂/T₂  

P₁ = Initial pressure

V₁ = Initial volume

T₁ = Initial temperature

P₂ = Final pressure

V₂ = Final volume

T₂ = Final temperature

Solution:

P₁V₁/T₁ = P₂V₂/T₂  

T₂  =  P₂V₂ T₁  / P₁V₁

T₂ = 2.50 atm × 435 mL × 355 K / 1.88 atm × 285 mL  

T₂ = 386062.5 atm. mL. K /535.8 atm. mL

T₂ = 721 k

5 0
3 years ago
Which of the following is true regarding how to calculate net force?
Burka [1]

Answer:

C

Explanation:

The net force is the total of the forces and if forces are opposing you would subtract the lesser from the greater thus giving you the remaining force.

3 0
3 years ago
1. Why don't scientists stop with the first step in the Scientific Method, making observations? A. They don't trust their own ob
natulia [17]

Answer:

Explanation:

Scientists don't stop with the first step of their experiment because they want other scientists' opinions because they may not trust their own observations.

                     OR

Scientists don't stop with the first step of their experiment because they would rather plan and run experiments than just observe the world around them    

       

Hope any one of these helps you

5 0
3 years ago
Which of the following has parts a and b labeled correctly
Alex

Answer:

the last one

Explanation:

A is the solution and the solvent and B is the solute

4 0
3 years ago
Which represents an endothermic reaction? wood burning in a fire splitting a gas molecule changing frost to water vapor TNT expl
scoundrel [369]

Answer:

changing frost into water vapors.

Explanation:

8 0
3 years ago
Read 2 more answers
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