Answer:
nucleus
Alpha particles are subatomic fragments consisting of two neutrons and two protons. Alpha radiation occurs when the nucleus of an atom becomes unstable (the ratio of neutrons to protons is too low) and alpha particles are emitted to restore balance.
Explanation:
0.035L
35.4mL
Explanation:
Given parameters:
Concentration of HCl = 12M
Number of moles = 0.425mol
Unknown:
volume of solution = ?
convert from L to mL = ?
Solution:
Molarity is the amount of solute in a volume of solvent
Molarity =
since the volume is the unknown, we make the subject of formula;
Volume =
Volume = = 0.035L
Converting to mL gives:
1L = 1000mL
0.035L = (0.035 x 1000)mL , 35.4mL
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Answer:
C
Explanation:
C is the only one that is true. Because sugar comes before juice in the ingredients listed, there is more of it.
Answer:
Structure has been shown below
Explanation:
- In a Lewis structure, least electronegative atom is taken as central atom (except H)
- Total valence electrons of constituting atoms are used to construct Lewis structure
- A bond between two atoms are represented by a horizontal line or a dotted line (two dots).
- Spatial rearrangement of atoms are neglected in Lewis structure.
- H has one valence electron and O has six valence electrons. So, total valence electrons in are 8
- Lewis structure of has been given below.