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nlexa [21]
3 years ago
6

Which of the following correctly identifies a bryophyte

Chemistry
1 answer:
Free_Kalibri [48]3 years ago
7 0

Answer:

1) bryophyte are also called amphibians of plants kingdom

2) presence of jacketed sex organ

3) they are thalloid

4) vascular tissue are absent

5) sexual reproduction is Oogamous

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Which of the following processes can be used to determine the instantaneous reaction rate for nitrogen monoxide (NO) at a specif
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Answer: Plot [NO] versus time, and calculate the slope of a line drawn tangent to the point of interest on the graph.

Explanation: The instantaneous rate of reaction is the change in concentration over an infinitesimally small time interval.

That is, (ΔC/Δt) as Δt --> 0 or dC/dt

Instantaneous rate can be obtained from experimental data by first graphing the concentration of a system as function of time, and then finding the slope of the tangent line at a specific point which corresponds to a particular time of interest.

Alternatively, one can measure the change in concentration over a very small time period two or more times to get an average rate close to that of the instantaneous rate. The reaction rate for that time is determined from the slope of the tangent lines still.

5 0
3 years ago
Identify each of these substances as acidic, basic, or neutral. rainwater, pOH = 8.5 cola, pOH = 11 tomato juice, pOH = 10 liqui
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Below the ph of 7.0 is acidic. Anything above is basic and the ph of 7.0 is neutral
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3 years ago
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A sample containing 4.80 g of O2 gas has an initial volume of 15.0 L. What is the final volume, in liters, when each of the foll
neonofarm [45]
The correct answer for the question that is being presented above is this one: "A. A sample of 0.500 mole of O2 is added to the 4.80 g of O2 in the container." A sample containing 4.80 g of O2 gas has an initial volume of 15.0 L. The final volume, in liters, when each of the following changes occurs in the quantity of the gas at a constant pressure and temperature is that <span>A sample of 0.500 mole of O2 is added to the 4.80 g of O2 in the container.</span>
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3 years ago
What characteristics to geoligists look for when observing a rock sample
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3 years ago
50 POINTS! PLEASE HELP!A gas in a balloon at constant pressure has a volume of 120.0mL at -12.30C. What is its volume at 197.00C
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Answer:

Final volume=V₂ = 216.3 mL

Explanation:

Given data:

Initial volume = 120.0 mL

Initial temperature = -12.3 °C (-12.3 +273 = 260.7 K)

Final volume = ?

Final temperature = 197.0 °C (197+273 = 470 K)

Solution:

We will apply Charles Law to solve the problem.

According to this law, The volume of given amount of a gas is directly proportional to its temperature at constant number of moles and pressure.

Mathematical expression:

V₁/T₁ = V₂/T₂

V₁ = Initial volume

T₁ = Initial temperature

V₂ = Final volume  

T₂ = Final temperature

Now we will put the values in formula.

V₁/T₁ = V₂/T₂

V₂ = V₁T₂/T₁

V₂ = 120 mL × 470 K /260.7K

V₂ = 56400 mL.K /260.7K

V₂ = 216.3 mL

4 0
3 years ago
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