Answer:
A. China And Japan.
Explanation:
The species is native to China/Japan and was introduced into the United States in the mid-1990s, possibly stowing away in a shipping container. The presence of this stink bug is concerning for farmers because it feeds on a large number of high-value crops and ornamental plants in its immature and adult life stages.
Cu + 2H2SO4 ⟶ CuSO4 + SO2 + 2H20
In left hand side of the equation.
Cu = 1 atom
H = 4 atoms
S = 2 atoms
O = 8 atoms
In right hand side of the equation.
Cu = 1 atom
S = 2 atoms
0 = 8 atoms
H = 4 atoms
• All the atoms are balanced in the left and right side of the equation and it satisfies the law of conservation of mass.
• Equation is balanced and correct.
*See the attachment .
Answer:
14.45g
Explanation:
We have a balanced equation:
3H2(g) + N2(g) → 2NH3(g)
We know the mass H2 = 2.55g
We can work out the moles of H2 - Mass = mr x moles
Moles = mass/ mr = 2.55/ 2 = 51/40
Using the ratios in the question, this is 3:2
51/40 /2 x 3 = 17/20
so there are 17/20 moles NH3
Mass = mr x moles = 17/20 x 17 = 289/20 = 14.45g
Hope this helps! Let me know if you have any questions :)
<span>A negatively charged electron cloud surrounding a positively charged nucleus. </span>
