1. Present or threatened destruction, modification, or curtailment of its habitat or range
2. Over-utilization of the species for commercial,recreational, scientific, or educational purposes
3. Inadequacy of existing regulatory mechanisms
4. Disease
5. Other natural or man-made factors affecting its continues existence
I'm so sorry I took long, I'm answering answer after answer :)
Not sure if this is helpful :)
I know these are things in order for an animal to be endangered, but just pick answer that's not these I guess? "Which of the following"
Answer would be c! hope i can help
Answer:
19.6 g is the mass of methanol
Explanation:
Density of methanol is 0.787 g/mL.
Density means mass / volume
Methanol density = Methanol mass / Methanol volume.
Let's replace in the formula
0.787 g/mL = Methanol mass / 25 mL
0.787 g/mL . 25 mL = Methanol mass → 19.6 g
Answer:
0.74 moles of oxygen are required for combustion
Explanation:
Given data:
Number of moles of oxygen required = ?
Mass of Mg = 35.5 g
Solution:
Chemical equation:
2Mg + O₂ → 2MgO
Number of moles of Mg:
Number of moles = mass/molar mass
Number of moles = 35.5 g/ 24 g/mol
Number of moles = 1.48 mol
Now we will compare the moles of Mg with oxygen.
Mg : O₂
2 : 1
1.48 : 1/2×1.48 = 0.74 mol
0.74 moles of oxygen are required for combustion.
Answer:
Atom economy is the conversion efficiency of a chemical process in terms of all atoms involved and the desired products produced