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2 years ago

You are working a crime scene and discover a weapon. How do you pick up the weapon so you do not disturb

Chemistry

2 answers:

11Alexandr11 [23.1K]2 years ago

3 0

Answer:

you pick it up with gloves and make minimal contact with it

Feliz [49]2 years ago

3 0

You would pick up the weapon with gloves from the bottom, this insures that you have minimal contact with it and not much DNA is wiped off.

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NOOO LINNKKKSSS

Elena L [17]

The answer is D I hope this helps you !

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2 years ago

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An unknown diprotic acid (H2A) requires 44.391 mL of 0.111 M NaOH to completely neutralize a 0.58 g sample. Calculate the approx

Anna [14]

Answer:

$M=235.42g/mol$

Explanation:

Hello!

In this case, given this is an acid-base neutralization and we are considering a diprotic acid, we can write the following mole-mole relationship:

$2n_{acid}=n_{base}$

It means that the moles of acid can be computed given the volume and concentration of NaOH:

$n_{acid}=\frac{M_{base}V_{base}}{2} =\frac{0.044391L*0.111mol/L}{2} \\\\n_{acid}=2.46x10^{-4}mol$

It means that the approximate molar mass of the acid is:

$M=\frac{m_{acid}}{n_{acid}} \\\\M=\frac{m_{acid}}{n_{acid}} =\frac{0.58g}{2.46x10^{-3}mol}\\\\M=235.42g/mol$

Best regards!

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2 years ago

When you see the word heptahydrate, what number should be written in front of the formula for water? 5 6 7 8?

Yuki888 [10]

Hept for 7, hence the number is seven.

8 0

2 years ago

Label the parts of the respiratory system.

Evgesh-ka [11]

Answer:

1. Nose

2. Mouth

3. Larynx

4. Lung

5. RIght Bronchi

6. Diaphragm

7. Pharynx

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9. Left Bronchi

10. Bronchioles

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Explanation:

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2 years ago

An example of a colloid which is composed of a liquid dispersed in a gas would be

Aleksandr-060686 [28]

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