From the information we have, this block of brown sugar has a volume of 8cm3
The mass of the block is 12. 9 grams.
We need to find out the density of the sugar.
For a solid material the formula for calculating density is given as:
Density = mass / volume
Therefore we simply fit in the above given values into this formula, so:
Density = 12.9 / 8
Density = 1.61
Therefore the density of the block of sugar is 1.61g/ml
The last one is the correct answer. The atomic structure can be broken down which is what the findings concerning protons, electrons and neutrons showed. The theory was thus modified. What remained was no chemical reaction could affect the basic structure of an atom.
Still the last choice is still true. The first choice is your second best answer because of what I wrote in the last sentence of the above paragraph.
Last Choice <<<<< answer
Mendel discovered three laws through his experiments.
Law of dominance; “when a cross is made between a pair of pure contrasting characters, only one of them is able to express itself phenotypically while the other remains hidden in F1 generation.”
Law of segregation; “the two members of a pair of factors separate during the formation of gametes. They do not blend with each other but segregate out into different gametes. Thus any gamete is not impure.”
Answer: The chemical formula of carbon dioxide is 
Explanation:
Chemical formula of any compound is the representation when elements combine with each other.
Carbon dioxide is a covalent compound and covalent compound is formed by the sharing of electrons between two elements that form a bond.
Electronic configuration of carbon: 
Carbon need 4 electrons to complete its octet.
Electronic configuration of oxygen: 
Oxygen need 2 electrons to complete its octet.
Hence, 2 oxygen atoms are required to complete the octet of 1 carbon atom. Hence, form a compound carbon dioxide 
