Answer:
i think the answer might be A the frist one
Explanation: because the chemical started immediately when the girl put in the two red colored and it started turning blue and by eight minutes it turned blue completely.
Answer :
The steps involved in the lewis-dot structure of
are :
- First we have to determine the total number of valence electron in
.
Number of valence electrons in S = 6
Number of valence electrons in two F atom = 2(7) = 14
Total number of valence electrons = 6 + 14 = 20 electrons
- Placing a bonding pair of electrons between the atoms to form the chemical bonds.
Electrons used in bonding = 4
- The remaining electrons are used as a lone pair for central or terminal atoms to achieve an octet to finish the Lewis dot structure.
Electrons used as a lone pair = 20 - 4 = 16
The image is shown below.
Answer:
The law of conservation of matter states that in a chemical reaction matter cannot be created or destroyed
Explanation:
Iron undergoes a chemical reaction called oxidation to form rust, or iron oxide. ... Copper forms a turquoise colored oxide and silver forms a black oxide. In both cases you know that a chemical reaction has taken place because of the color change.
That would be telophase 2 of Meiosis