Answer:
Explanation:
Half time is period required to desintegrating the half of the initial number of atoms. Then, the total time is:
You can start by writing out the molecular formula of each molecule.
Aluminum (Al 3+) Phosphate (PO4 3-)
AlPO4
Nickel II (Ni 2+) sulfide (S 2-)
NiS
Aluminum Sulfide
Al2S3
Nickel Phosphate
Ni3(PO4)2
If you’re wondering, we get those charges by looking at the periodic table. The metals usually have a + charge based on their group number. The nonmetals usually - charge egual to 8 - their group number.
You then balance the ions by flipping the charges, dropping the signs, and adding them in as subscripts.
Now we can put it into an equation
AlPO4 + NiS —-> Al2S3 + Ni3(PO4)2
Balance by adding coefficients
2 AlPO4 + 3 NiS —-> Al2S3 + Ni3(PO4)2
Answer:
the movement of carbon through the biosphere
Explanation:
Carbon cycle is one of the major biogeochemical cycles that occurs on Earth. It is the process whereby carbon moves or circulates throughout the earth. Carbon, which is a major component of many biological substances moves to and fro living organisms and the atmosphere in different forms.
Carbon is released and absorbed in different forms in the atmosphere. For example, carbon in form of carbondioxide (CO2) is released into the atmosphere by living organisms via the process of CELLULAR RESPIRATION. The CO2 is then absorbed by green plants for the process of PHOTOSYNTHESIS. The carbon is released back into the earth when decomposers degrade dead organisms. This process of recycling carbon via natural processes is called CARBON CYCLE.
Hence, the movement of carbon through the biosphere is the best description of carbon cycle in this question.
AB₂(s) ⇄ A²⁺(aq) + 2B⁻(aq)
Ksp=[A²⁺][B⁻]²
a=1.10 g/L
M=169 g/mol
c=a/M
[A²⁺]=c=a/M
[B⁻]=2c=2a/M
Ksp=(a/M)(2a/M)²=4(a/M)³
Ksp=4*(1.10/169)³=1.103×10⁻⁶
Answer: A. The particles move faster
Explanation:
Increasing the temperature increases the kinetic energy of the particles, causing them to move faster.