Answers: 3
Chemistry, 22.06.2019 03:00
Zoe is investigating the composition of substance a, an unknown substance. using chemical processes, she analyzes substance a and determines it is composed of sodium, oxygen, and hydrogen atoms in a ratio of 1 : 1 : 1. what is substance a? a. a compound b. an element c. a heterogeneous mixture d. a homogeneous mixture
Answers: 1
Chemistry, 22.06.2019 04:30
Both josef loschmidt and amedeo avogadro contributed to our understanding of basic molecular numbers, sizes, and reaction ratios. neither scientist discovered “avogadro’s number” in the form we use it today (6.02 x 10 23). still, there’s a controversy over the name. research the contributions from these two scientists and read about how avogadro’s number got its name. briefly state what you think this number should be called, providing key details of each scientist’s contributions to this concept and a solid rationale for your case in naming the number.
Answers: 2
Chemistry, 22.06.2019 06:40
Three alkali metals in group 1 are a. calcium, strontium, barium b. boron, aluminum, gallium c. sodium, potassium, rubidium d. fluorine, iodine, chlorine
Answers: 1
Chemistry, 22.06.2019 21:30
What is the correct name for the compound cocl3? a) cobalt(i) chloride b) cobalt(i) chlorate c) cobalt(ii) chlorate d) cobalt(iii) chloride
Answers: 1
What volume is occupied by 4 moles of hydrogen molecules (H2) at standard conditions?...
Mathematics, 19.02.2021 14:00
Mathematics, 19.02.2021 14:00
Mathematics, 19.02.2021 14:00
Health, 19.02.2021 14:00
Physics, 19.02.2021 14:00
Biology, 19.02.2021 14:00
Mathematics, 19.02.2021 14:00
Physics, 19.02.2021 14:00
Mathematics, 19.02.2021 14:00
Mathematics, 19.02.2021 14:00
Mathematics, 19.02.2021 14:00
Chemistry, 19.02.2021 14:00