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Questions in chemistry

📝 Answered - Which element, in the ground state, has only 1 electron in a p orbital? A. Carbon B. Fluorine C. Hydrogen D. Nitrogen E. Aluminum

📝 Answered - Which of the following has the most electrons? A) [tex]\text{Sr}^{2+}[/tex] B) [tex]\text{Rb}[/tex] C) [tex]\text{Cl}^{-}[/tex] D) [tex]\text{Kr}[/tex]

📝 Answered - What volume does 8.5 g of NH₃ occupy at STP? A. 2.81 L B. 5.61 L C. 11.21 L D. 22.41 L E. 44.81 L

📝 Answered - Every substance is either an element or a ____. Fill in the blank.

📝 Answered - Why is the equation incorrect? \[ \text{Mg}_3 + \text{N}_2 \rightarrow \text{Mg}_3\text{N}_2 \] A. Some of the subscripts are incorrectly used. B. The equation is not balanced. C. The valence of the nitride ion is incorrect. D. The valence of the magnesium ion is incorrect. E. The coefficient of \(\text{N}_2\) is incorrect.

📝 Answered - What is the main intermolecular force in H\(_2\)CO? A. Dipole-dipole B. Hydrogen bond C. London dispersion D. Polar/nonpolar

📝 Answered - Consider the following equation: \[ 4\text{NH}_4 + 5\text{O}_2 \rightarrow 4\text{NO} + 6\text{H}_2\text{O} \] How many moles of water are produced when 2 moles of \(\text{NH}_4\) react with excess oxygen gas?

📝 Answered - How many atoms of carbon are in 24 grams of carbon? a) \(1.2 \times 10^{24}\) atoms b) \(1.7 \times 10^{26}\) atoms c) \(1.2 \times 10^{25}\) atoms d) \(3.0 \times 10^{24}\) atoms e) \(3.0 \times 10^{23}\) atoms Can anyone explain this one?

📝 Answered - Why is water vapor important in weather?

📝 Answered - A balloon, whose volume at 23°C is 535 mL, is heated to 46°C. Assuming the pressure and amount of gas remain constant, what is the volume of the balloon at 46°C?