Answer:
A- Energy from sunlight becomes glucose during photosynthesis
Explanation:
The law of conservational photosynthetic energy states that atoms cannot be created nor destroyed; the atoms can only be rearranged into new molecules and ions. This implies that the enzymes in photosynthesis are aided by energy to transform into glucose, which the plant needs.
<span> Positive Ion - Occurs when an atom loses an electron (negative charge) it has more </span>protons<span> than electrons.</span>
Ion-Induced dipole, dipole- induced dipole, dispersion,
Answer:
The most important thing to know is that an α-particle (alpha particle) is a helium nucleus.
Explanation:
It contains 2 protons and 2 neutrons, for a mass number of 4.
During α-decay, an atomic nucleus emits an alpha particle. It transforms (or decays) into an atom with an atomic number 2 less and a mass number 4 less.
Thus, radium-226 decays through α-particle emission to form radon-222 according to the equation:
226
88
Ra
→
222
86
Rn
+
4
2
He
Note that the sum of the subscripts (atomic numbers or charges) is the same on each side of the equation. Also, the sum of the superscripts (masses) is the same on each side of the equation.
EXAMPLE
Write a balanced nuclear equation for the α decay of polonium-208.
Solution
The unbalanced equation is
208
84
Po
→
4
2
He
+
X
The superscript of
X
must be 208 – 4 = 204.
The subscript of
X
must be 84 – 2 = 82.
Element 82 is Pb. So the equation is
208
84
Po
→
4
2
He
+
204
82
Pb
Explanation:hope this is right and helps
Answer:
2193.8 PSI is the pressure in the tank
Explanation:
We apply the Ideal Gases Law to solve this:
P . V = n . R . T
T° is the temperature in K, so we must do the conversion:
35°C + 273 = 308K
P . 1650L = 9750 mol . 0.082 L.atm/mol.K . 308K
P = (9750 mol . 0.082 L.atm/mol.K . 308K) / 1650L → 149.24 atm
Let's make the conversion:
1 atm = 14.7 PSI → 149.24 atm . 14.7 PSI / 1 atm = 2193.8 PSI