Elements are organized on the periodic table based on their properties. Which statement correctly predicts and explains the chemical reactivity of two metals? Rubidium (Rb) is more reactive than strontium (Sr) because strontium atoms must lose more electrons. Sodium (Na) is more reactive than magnesium (Mg) because sodium atoms must gain more electrons. Calcium (Ca) is less reactive than potassium (K) because potassium atoms must lose more electrons. Beryllium (Be) is less reactive than lithium (Li) because beryllium atoms must gain more electrons.
Answers: 3
Chemistry, 22.06.2019 12:00
What is the subscript for oxygen in its molecular formula
Answers: 1
Chemistry, 22.06.2019 15:00
Large helium-filled balloons are used to lift scientific equipment to high altitudes. what is the pressure inside such a balloon if it starts out at sea level with a temperature of 10.0ºc and rises to an altitude where its volume is twenty times the original volume and its temperature is – 50.0ºc ?
Answers: 2
Chemistry, 22.06.2019 17:30
What will most likely happen in the absence of a cell membrane? a) photosynthesis will not take place. b) the cell will not store food, water, nutrients, and waste. c) energy will not be released during cellular respiration. d) substances will pass in and out of the cell in an uncontrolled manner.
Answers: 1
Elements are organized on the periodic table based on their properties. Which statement correctly pr...
Mathematics, 08.02.2021 18:30
Mathematics, 08.02.2021 18:30
Social Studies, 08.02.2021 18:30
Chemistry, 08.02.2021 18:30
History, 08.02.2021 18:30
Mathematics, 08.02.2021 18:30
Health, 08.02.2021 18:30
Mathematics, 08.02.2021 18:30
Chemistry, 08.02.2021 18:30
Mathematics, 08.02.2021 18:30
Biology, 08.02.2021 18:30
Mathematics, 08.02.2021 18:30
Mathematics, 08.02.2021 18:30
Mathematics, 08.02.2021 18:30