What is the molar volume of a gas at standard temperature and pressure? 1.0 L 2.4 L 11.2 L 22.4 L
What volume would 3.01cdot 10^23 molecules of oxygen gas occupy at STP? 11.2 mL 22.4 mL 11.2 L 22.4 L
Which among the following is a chemical change? Reactivity Melting Cutting Freezing
Part F CH_(3)CH_(2)CHCl downarrow CH_(3) Spell out the full name of the compound.
Why is vaporization classified as a phase change? It forms ash Identity changes It is reversible and involves state change It forms new compounds
Based on the equation how many grams of Br_(2) are required to react completely with 29.2 grams of AlCl_(3) 2AlCl_(3)+3Br_(2)arrow 2AlBr_(3)+3Cl_(2) 48.7 grams 52.6 grams 56.7 grams 61.3 grams
5. Why is the molecular formula for magnesium sulfide MgS instead of Mg_(2)S_(2) Empirical formulas are always used for all compounds instead of molecular formulas. Scientists always reduce the formulas from ionic compounds because the ratio of ions is what is important. Scientists only need to simply when the subscripts are the same number.
Part 12A: Calculate the molar mass of the compound vanadium (III) hydroxide, V(OH)_(3) M(V)=50.94(g)/(mol),M(H)=1.01(g)/(mol),M(O)=16.00(g)/(mol)
5. What is the percent composition by mass of nitrogen (N) in ammonium nitrate (NH4NO3)
What does 12.011 represent? element name atomic number atomic mass chemical symbol
The compound $2,4,6$ trimethylheptane has how many chiral centers? o 3 1 4
Which of the following statements about a catalyst is true? A catalyst accelerates a reaction by lowering the energy of activation. A catalyst accelerates a reaction by raising the energy of activation. A catalyst accelerates a reaction by changing the amount of reactant and product at equilibrium. A catalyst accelerates a reaction by lowering the equilibrium constant.
Complete the atomic orbital diagram for the ground-state electronic configuration of phosphorus. $\square $ $\square $ $\square $ $\square $ $\square $ $\square $ $\square $ $\square $ $\square $
Which of the following types of compounds can form hydrogen bonds with itself? Alcohols ethers alkenes
Mixtures can be separated by physical changes. Please select the best answer from the choices provided T F
13. Base your answer to the following question on the balanced equation below. $2Na(s)+Cl_{2}\rightarrow 2NaCl(s)$ Explain, in terms of electrons, why the bonding in NaCl is ionic.
5. Why is the molecular formula for magnesium sulfide MgS instead of $Mg_{2}S_{2}$ Empirical formulas are always used for all compounds instead of molecular formulas. Scientists always reduce the formulas from ionic compounds because the ratio of ions is what is important. Scientists only need to simply when the subscripts are the same number.
Question 11 of 32 How did the methods of alchemists differ from the methods of early chemists? A. Chemists did not try to discover new materials. B. Chemists did not study gold or other metals. C. Alchemists did not use experiments to find evidence. D. Alchemists did not make observations.
Part 12A: Calculate the molar mass of the compound vanadium (III) hydroxide, $V(OH)_{3}$ $M(V)=50.94\frac {g}{mol},M(H)=1.01\frac {g}{mol},M(O)=16.00\frac {g}{mol}$
Question 1 of 32 What is the noble gas configuration for tellurium (Te)? The Periodic Table A. $[Xe]5s^{2}5p^{6}5d^{8}$ B. $[Kr]5s^{2}5p^{6}5d^{8}$ C. $[Xe]5s^{2}4d^{10}5p^{4}$ D. $[Kr]5s^{2}4d^{10}5p^{4}$
