ASSESSMENT
GRIECHEME
20 Marks
PART A: MULTIPLE CHOICE QUESTIONS
Choose the best answ...
Chemistry, 24.06.2021 03:00 SydneyFrank
ASSESSMENT
GRIECHEME
20 Marks
PART A: MULTIPLE CHOICE QUESTIONS
Choose the best answer for each question. Write the LETTER of your choice in the box provided.
QUESTION
When a course nee is healed in letne enelals become powdery. There are ne
bondenzations or other visible changes inside the Bt lube. After cooling the mass of the contents
olithe les tube del BS.
The most likely tplanation of these observation is thal, on healing the
crestals toe water.
ons with air.
crystals give off a colourless gas
ramia
substance remains unchanged but decreases in mass because it is in powder form.
Answers: 2
Chemistry, 21.06.2019 15:30
Determine the empirical formula of a compound containing 40.6 grams of carbon, 5.1 grams of hydrogen, and 54.2 grams of oxygen. in an experiment, the molar mass of the compound was determined to be 118.084 g/mol. what is the molecular formula of the compound? for both questions, show your work or explain how you determined the formulas by giving specific values used in calculations.
Answers: 3
Chemistry, 22.06.2019 13:00
In what environment would mineral formation caused by high pressures and high temperatures most likely occur?
Answers: 3
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