Unit 1-2 Chemistry Final exam
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Last updated over 1 year ago
13 questions
1
- Which substance below would be classified as a compound?
- Which substance below would be classified as a compound?
1
A student describes a sample with the chemical formula 2 NH3. Which statement below best describes this substance?
A student describes a sample with the chemical formula 2 NH3. Which statement below best describes this substance?
1
A chemist isolated a sample of water, which is represented in the diagram shown to the right. Based on the diagram shown, in what state is the water and why?
A chemist isolated a sample of water, which is represented in the diagram shown to the right. Based on the diagram shown, in what state is the water and why?
1
Which of the following statements is true about fluorine?
Which of the following statements is true about fluorine?
1
Which of the following is NOT true about electrons?
Which of the following is NOT true about electrons?
1
An unknown element has 2 energy shells and 6 valence electrons. What is the element?
An unknown element has 2 energy shells and 6 valence electrons. What is the element?
1
Why are Helium, Neon, and Xenon present in different periods of the periodic table?
Why are Helium, Neon, and Xenon present in different periods of the periodic table?
1
- Which of the following atoms is most likely to be shiny, malleable, ductile, and conductive?
- Which of the following atoms is most likely to be shiny, malleable, ductile, and conductive?
1
Which of the following elements will have metallic and non-metallic properties?
Which of the following elements will have metallic and non-metallic properties?
1
Which statement below best explains why the atomic radius of lithium is larger than the atomic radius of hydrogen?
Which statement below best explains why the atomic radius of lithium is larger than the atomic radius of hydrogen?
1
Which of the following correctly lists the elements from lowest to highest ionization energy? Neon, Fluorine, Nitrogen, Silicon
Which of the following correctly lists the elements from lowest to highest ionization energy? Neon, Fluorine, Nitrogen, Silicon
1
Which of the following compounds below contains ionic bonding?
Which of the following compounds below contains ionic bonding?
1
- The chemical equation below is unbalanced.
____ PCl5 (g) + ____ H2O (l) → ____ HCl (aq) + ____ H3PO4(aq)Which answer choice below shows the correct coefficients for this equation in order?
- The chemical equation below is unbalanced.
____ PCl5 (g) + ____ H2O (l) → ____ HCl (aq) + ____ H3PO4(aq)
Which answer choice below shows the correct coefficients for this equation in order?