This is the chemical formula for talc (the main ingredient in talcum powder): Mg3Si2O52OH2 An analytical chemist has determined by measurements that there are 6.2 moles of oxygen in a sample of talc. How many moles of hydrogen are in the sample? Be sure your answer has the correct number of significant digits.

practical process described pest part of scientific investigation.

because practical knowledge is powerful then therotical knowledge.

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.

here is table 2-2:

country

percent of eligible voters that voted

rank

united states

44.9%

138

canada

60.1%

107

costa rica

84.6%

14

hungary

66.9%

82

japan

57.0%

118

egypt

27.7%

159

south africa

85.5%

10

ans is no, the data set cannot be plotted as a single circle graph