b. 19 g/mole
Answers: 3
Chemistry, 22.06.2019 22:00
Choose all the answers that apply. fluorine (f) has an atomic number of 9 and an atomic weight of 18.99. fluorine has a. 9 protons b. 10 neutrons c. 18 electrons d. an atomic mass of 19 e. at least one isotope
Answers: 1
Chemistry, 23.06.2019 05:00
110 g of water (specific heat = 4.184 j/g c) and 100 g of a metal sample (specific heat = 0.397 j/g c) are heated from 25 degrees c to 75 degrees c. which substance required more thermal energy?
Answers: 1
Chemistry, 23.06.2019 05:40
Why is any chemical reaction always balanced? give reasons and explain the easiest way to solve the balancing problems in chemical equations with stoichiometric coefficients upto 20 as hit and trial doesn't always work. give full reasoning
Answers: 1
Chemistry, 23.06.2019 06:40
A250 g sample of water with an initial temperatureof 98.8 closes 6500 joules of heat. what is the finaltemperature of the water?
Answers: 1
What is the mass in grams of 3.9 moles of water?
a. 18.02 g/mole
b. 19 g/mole
b. 19 g/mole
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