I need help :( plz help this is due tmr for me
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Answers: 2
Chemistry, 22.06.2019 06:00
An atom of sodium-23 (atomic number = 11) has a positive charge of +1. give this information, how many electrons does it have? how many proteins and neutrons does this atom have
Answers: 2
Chemistry, 22.06.2019 07:00
The boiling point of propanoic acid is higher than that of 1-butanol because: propanoic acid has a higher molecular weight than 1-butanol. propanoic acid is more soluble in water than 1-butanol. propanoic acid is a better hydrogen bond donor than 1-butanol. propanoic acid forms hydrogen bonded dimers and 1-butanol does not. 1-butanol forms hydrogen bonded dimers and propanoic acid does not.
Answers: 2
Chemistry, 22.06.2019 13:50
Read the chemical equation. 2c2h2 + 5o2 → 4co2 + 2h2o which of the following statements would be correct if one mole of c2h2 was used in this reaction? one mole of oxygen was used in this reaction. five moles of oxygen were used in this reaction. four moles of carbon dioxide were produced from this reaction. two moles of carbon dioxide were produced from this reaction.
Answers: 3
Chemistry, 22.06.2019 18:00
Chlorophyll a had the molecular formula c55h72mgn4o5 how many atoms are in this molecule
Answers: 2
Mathematics, 04.07.2019 11:30
Social Studies, 04.07.2019 11:30
Mathematics, 04.07.2019 11:30
Social Studies, 04.07.2019 11:30
Mathematics, 04.07.2019 11:30
Social Studies, 04.07.2019 11:30
Mathematics, 04.07.2019 11:30
Mathematics, 04.07.2019 11:30
Mathematics, 04.07.2019 11:30
Mathematics, 04.07.2019 11:30
Mathematics, 04.07.2019 11:30
Mathematics, 04.07.2019 11:30