VincenTragosta - Tanya, Jawab, dan Belajar Tanpa Batas Logo

Questions in chemistry

[Terjawab] Atoms of which two elements in the ground state contain the same number of valence electrons? A. Al & Si B. Al & B C. Al & Zn D. Al & Ge

[Terjawab] If we place an enzyme in a strongly acidic pH, which of these is most likely to happen? A. The reaction will happen much faster at the extreme acidity. B. The reaction will not happen. C. The reaction will occur as if the enzyme were at neutral pH.

[Terjawab] The element carbon is present in all organic compounds. Which reason would explain why there are so many different types of organic compounds? A) Carbon is a nonmetal. B) Carbon has an atomic number of six. C) Carbon can form four covalent bonds. D) Carbon has a total of six electrons.

[Terjawab] Which of the following characteristics of the arctic rabbit is specifically an adaptation to living in the tundra? - Small size - Keen eyesight - Strong legs - White fur

[Terjawab] Would you expect hydrogen chloride to be a gas, liquid, or a solid at room temperature and pressure? Explain your answer.

[Terjawab] Describe five sources of chemical weathering.

[Terjawab] What is the total number of electrons in the second principal energy level of a sodium atom in the ground state?

[Terjawab] Ponds and rivers are two types of A. marine ecosystems B. rain forest biomes C. freshwater ecosystems D. estuary ecosystems

[Terjawab] Convert the following numbers into Scientific Notation: 1. 3.400 2. 0.000023 3. 101,000 4. 0.010 5. 45.01 6. 1,000,000 7. 0.00671 8. 4.50

[Terjawab] 1. How many atoms are present in 4.0 mol of sodium? 2. Convert [tex]3.01 \times 10^{23}[/tex] atoms of silicon to moles of silicon.