Chemistry, 14.03.2022 05:30, cupkakekawaii45
1. Use Dot and cross method to show the bonding of the atoms and state the number of atoms of each element present
a. Magnesium and Fluorine
b. Sodium and Fluorine
c. Sodium and Oxygen
d. Aluminum and Iodine
2. Write the chemical formula using the 4-step method for:
a) Magnesium sulphide,
b) Magnesium Fluoride,
c) Hydrogen Bromide and
d) Iron (III) Oxide.
Answers: 3
Chemistry, 22.06.2019 09:30, andrejr0330jr
What is the molar mass of potassium nitrate, kno3
Answers: 1
Chemistry, 22.06.2019 22:30, skinniestoflegends
Consider a culture medium on which only gram-positive organisms such as staphylococcus aureus colonies can grow due to an elevated nacl level. a yellow halo surrounds the growth, indicating the bacterium fermented a sugar in the medium, decreasing the ph as a result and changing the color of a ph indicator chemical. this type of medium would be referred to as a differential and enrichment culture.
Answers: 2
1. Use Dot and cross method to show the bonding of the atoms and state the number of atoms of each e...
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