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statuscvo [17]
3 years ago
6

CHEMISTRY QUESTIONS // 30 POINTS

Chemistry
1 answer:
lions [1.4K]3 years ago
3 0

Answer:

yesyeysesyesyesyesteys

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A 5.0 milliliter sample of a substance has a mass of 12.5 grams. What is the mass of a 100 milliliter sample of the same substan
exis [7]

Answer:

It sould be 250 grams

Explanation:

4 0
3 years ago
How much heat is released when you condense 93.9 g of water vapor? <br><br> Show work please ❤️
sammy [17]

<u>Answer:</u>

211.9 J

<u>Explanation:</u>

The molecules of water release heat during the transition of water vapor to liquid water, but the temperature of the water does not change with it.

The amount of heat released can be represented by the formula:

Q=mL_e

where Q = heat energy, m = mass of water and L = latent heat of evaporation.

The latent heat of evaporation for water is L=2257 kJ/kg and the mass of the water is m=93.9 g=0.0939 kg.

The amount of heat released in this process is:

Q=mL_e = (0.0939kg)(2257 kJ/kg)= 211.9 J

7 0
3 years ago
Is mud a heterogeneous or homogeneous mixture?
Lemur [1.5K]

Answer:

Heterogenous

Explanation:

Mud is a mixture of water and soil

8 0
3 years ago
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Which has more volume a kilogram of feathers or a kilogram of bricks please answer quickly thank you
elena55 [62]
I'll answer the first question: the answer is....a kilogram of bricks.
4 0
3 years ago
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During an investigation, hair samples are taken from either the head or pubic area of a victim.
BabaBlast [244]

Answer:

A. True

Explanation:

it is possible to identify a hair as originating from a particular body area, the regions of the body that are primarily used in forensic comparisons are the head and pubic areas.

Forensic = the application of scientific methods and techniques to natters investigation by a court of law.

7 0
2 years ago
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