Matter is anything & everything around you.
A chair,baseball,person,shoes,desk,etc are all made of matter
Density is equal to mass divided by volume.
So D=118/12
D=9.83
Answer:
B. Able to be lost or gained in chemical reactions.
Food contamination is classified into three types: 1) Physical 2) Chemical Biological.
Physical contamination occurs if a paint chip falls into soup
It must be noted that, physical<span> contamination get into food through</span><span> poor procedural practices such as</span><span> dirt, hair, nail polish flakes, broken glass, nails, staples, plastic fragments, bones, bits of packaging, etc.</span>
Answer:
C2H3Br + O2 → CO2 + H2O + HBr
Explanation:
The term balancing of chemical reaction equation has a unique meaning in chemistry. What it actually means is to ensure that the number of atoms of each element on the left hand side of reaction equation becomes equal to the number of atoms of the same element on the right hand side of the reaction equation.
When we look at the equation; C2H3Br + O2 → CO2 + H2O + HBr, the number of atoms of each element on the left and right hand sides of the given equation are not the same hence the equation is unbalanced.
If we look at the equation; 2C2H3Br + 5O2 → 4CO2 + 2H2O + 2HBr, the number of atoms of each element on both sides of the reaction equation are now equal, thus the later equation is the balanced version of the former.
