Steps of the technological design process include: identify a problem, research the problem, generate possible solutions, select the best solution, create a model, test the model, refine and retest the model as needed, and communicate the final solution.
A molecule consists of two or more atoms united by a bond
Answer:
0.023 moles
Explanation:
Given that:
Pressure = 0.899 atm
Temperature = 24 °C
The conversion of T( °C) to T(K) is shown below:
T(K) = T( °C) + 273.15
So,
T = (24 + 273.15) K = 297.15 K
Volume = 625 mL
Also, 1 mL = 10⁻³ L
So, volume = 0.625 L
Moles of the gas = ?
Using ideal gas equation as:
PV=nRT
where,
P is the pressure
V is the volume
n is the number of moles
T is the temperature
R is Gas constant having value = 0.0821 L.atm/K.mol
Applying the equation as:
0.899 atm × 0.625 L=n × 0.0821 L.atm/K.mol × 297.15 K
<u>⇒n = 0.023 moles</u>
I'm pretty sure its D because if it's manufactured and distributed its likely not toxin or poison. a narcotic could be a controlled substance so that's why I'm leaning towards D
Convection
Explanation:
Convection is form of heat transfer by which heat moves through liquid and circulates due to density differences.
There are three major forms of heat transfer:
- Conduction is form of heat transfer that involves contact between two bodies in which collision between their molecules caused heat exchange from the hot body to the cold one.
- Radiation is a form of heat transfer that does not involve contact. It involves the use of electromagnetic waves of different forms.
- Convection occurs in fluids in which heat transfers as a result of movement of molecules of the medium from one point to the other. The hotter body becomes lighter and rises whereas the colder ones sinks.
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Sun's energy brainly.com/question/1140127
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