The answer is; 6
The atomic number of magnesium (the number of protons ) is 12. Since the mass number is the number of protons + neutrons. The neutron number can be derived as 24 -12 = 12.
Since she already has 6 neutrons, she needs to add (12 – 6) more neutrons = 6
All you need to do the cross the charges and put it as suffixes.
D+2 + E-1 ----> DE2
answer is C
Answer:
Atoms are neither created or destroyed.
Explanation:
The end result of a chemical change does not create or destroy any atoms. Matter cannot be created or destroyed, meaning the same amount of atoms exist before and after the change.
False I think because they don't use balloons to check the weather
Answer:
The answer to your question is below
Explanation:
Alkane Formula Boiling point (°C)
Methane CH₄ -162
Ethane CH₃CH₃ - 89
Propane CH₃CH₂CH₃ - 42
Butane CH₃(CH₂)₂CH₃ - 0.5
Pentane CH₃(CH₂)₃CH₃ 36
Hexane CH₃(CH₂)₄CH₃ 69
Heptane CH₃(CH₂)₅CH₃ 98
Octane CH₃(CH₂)₆CH₃ 126
Nonane CH₃(CH₂)₇CH₃ 151
Decane CH₃(CH₂)₈CH₃ 174
