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liraira [26]
3 years ago
12

Scientists use scientific notation to represent very small or very large numbers because this notation increases the

Chemistry
2 answers:
Lera25 [3.4K]3 years ago
7 0
This is a question that is hard to answer without any options or choices. I am answering the question based on my knowledge. <span>Scientists use scientific notation to represent very small or very large numbers because this notation increases the accuracy and decreases the chance of a mistake. I hope it has helped you.</span>
Luba_88 [7]3 years ago
5 0

convenience in using the numbers. just took the quiz

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list all of the species that would have a net attraction to the positive charge: CH4, CH2Cl2, H3O+, H2O, C2H2Cl2, CO2, N3-,
Rzqust [24]
A species with a positive charge will have a net attraction to a species with a negative charge. Among the choices, N3- is the only one attracted to a positive charge.
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3 years ago
Determine the specific heat ofmaterial if a 12g sample absorbed 48j as it was heated from 20-40
devlian [24]

Answer:

c =0.2 J/g.°C

Explanation:

Given data:

Specific heat of material = ?

Mass of sample = 12 g

Heat absorbed = 48 J

Initial temperature = 20°C

Final temperature = 40°C

Solution:

Specific heat capacity:

It is the amount of heat required to raise the temperature of one gram of substance by one degree.

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

ΔT =  40°C -20°C

ΔT =  20°C

48 J = 12 g×c×20°C

48 J =240 g.°C×c

c = 48 J/240 g.°C

c =0.2 J/g.°C

6 0
3 years ago
What is a pollinator?
AlexFokin [52]

It's A: an animal that transfers pollen from flower to flower.

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A hydrocarbon sample was burned in a bomb calorimeter. The temperature of the calorimeter and the 1.00 kg of water rose from 20.
fomenos

Answer:

The heat released by the combustion is 20,47 kJ

Explanation:

Bomb calorimeter is an instrument used to measure the heat of a reaction. The formula is:

Q = C×m×ΔT + Cc×ΔT

Where:

Q is the heat released

C is specific heat of water (4,186kJ/kg°C)

m is mass of water (1,00kg)

ΔT is temperature change (23,65°C - 20,45°C)

And Cc is heat capacity of the calorimeter (2,21kJ/°C)

Replacing these values the heat released by the combustion is:

<em>Q = 20,47 kJ</em>

6 0
3 years ago
PLZ HELP ME!!! I'll give brainliest to whoever answers this along with 15 points!
Readme [11.4K]

I would say diamond, because it consists only of carbon

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3 years ago
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