These types of animals are referred to as D. scavengers.
Scavenger animals are adapted to feed on dead and decaying meat and usually feed on the carcasses left over by predatory animals. An example is how vultures pick off the meat from a zebra carcass that has been left over after a lion pack has finished eating from it.
When there is a decrease in the pressure or an increase in volume. As the container gets bigger, it will want to increase the pressure to get back to equilibrium. For that to happen, it will have to increase the number of gas moles, and since co2 is the only has in that equation, it will increase.
Answer:
Mass of hydrogen gas produced = 0.2 g
Explanation:
Given data:
Number of moles of Mg = 0.2 mol
Number of moles of HCl = 0.2 mol
Mass of hydrogen gas produced = ?
Solution:
Chemical equation:
Mg + 2HCl → MgCl₂ + H₂
Now we will compare the moles of of hydrogen with Mg and HCl.
Mg : H₂
1 : 1
0.2 : 0.2
HCl : H₂
2 : 1
0.2 : 1/2×0.2 = 0.1
HCl produced less number of moles of hydrogen gas it will act as limiting reactant.
Mass of hydrogen:
Mass = number of moles × molar mass
Mass = 0.1 mol × 2 g/mol
Mass = 0.2 g
Answer:
4.22 × 10 ⁻²² mol
Explanation:
Given data:
Number of molecules of bromine = 254 molecules
Number of moles = ?
Solution:
1 mole = 6.02 × 10 ²³ molecules
254 molecules × 1 mol / 6.02 × 10 ²³ molecules
42.2 × 10 ⁻²³ mol
4.22 × 10 ⁻²² mol
If the element is a metal with one electron in its outermost energy level.
