Acceso
Prima
Hogar Banco de preguntas Química Archive 2025 January 30

Chemistry Questions from Jan 30,2025

Browse the Chemistry Q&A Archive for Jan 30,2025, featuring a collection of homework questions and answers from this day. Find detailed solutions to enhance your understanding.

error msg
5) What is the Law of Conservation of Mass? Which one of the following is the smallest mass? A B C 5.2 mg D 5.2 cg Chemists assign atoms to chemical elements by counting their __ protons isotopes neutrons electrons Radioactive decay is likely to occur when ... Part G An atom has 6 electrons, 6 protons, and 6 neutrons. You can tell that this atom belongs to the element because C; it has 6 electrons. ; it has 6 electrons. C; it has 6 protoths. 0 ; its mass number is 12 N ; it has 6 protons. Submit Request Answer Two atoms always represent the same element if they have ... the same number of electrons. the same number of shells. the same number of particles in the nucleus. the same number of protons. the same mass number. Which statement is true of the energy levels of electrons in shells? The valence shell has higher energy than other occupied shells. All the electrons in an atom have similar amounts of energy. Electrons must lose energy to move from the first to the second shell. All of the above. None of the above. Which statement is true of atoms? Protons attract other protons. Most of an atom's volume is filled with matter. Protons repel electrons. Electrons determine the atom's size. All of the above. The mass number of an atom is 15 , and its atomic number is 7 . The atom probably has... 7 units of negative charge in the nucleus. at least 15 electrons. 8 neutrons in the nucleus. about as much mass in electrons as in protons. 7 electrons in the nucleus. Name: Payton Skinner Mr. McCormick \& Mr. Haight Science 2 Spring 2025 Ionic Names \& Formulas Practice WRITING IONIC FORMULAS 1. Look up element symbol and element charges on the periodic table 2. Use subscripts to balance/match charges ( ) Potassium chloride: KCI Sodium nitride: Calcium bromide: CaBr 2 Beryllium chloride: Calcium sulfide: Cesium sulfide: NAMING IONIC COMPOUNDS 1. Look up names of elements on list 2. Add-ide to the end of the non-metal : : : BaS : : : WRITING IONIC FORMULAS WITH POLYATOMIC IONS 1. Look up polyatomic symbol and charge on list 2. Put polyatomic ion in brackets and use subscripts to balance charges Potassium hydroxide : Magnesium Phosphate : Ammonium Nitrate : - Nitrate - Hydroxide - Chlorate - Sulfate - Carbonate - Phosphate - Ammonium
Anterior 1 2 3 4 5 6
...
9 Próximo
1 2 3 4 5 6
...
9
Anterior Próximo
Estudiar puede ser una verdadera lucha
¿Por qué no estudiarlo en UpStudy?
Seleccione su plan a continuación
Prima

Puedes disfrutar

Empieza ahora
  • Explicaciones paso a paso
  • Tutores expertos en vivo 24/7
  • Número ilimitado de preguntas
  • Sin interrupciones
  • Acceso completo a Respuesta y Solución
  • Acceso completo al chat de PDF, al chat de UpStudy y al chat de navegación
Básico

Totalmente gratis pero limitado

  • Solución limitada
Bienvenido a ¡Estudia ahora!
Inicie sesión para continuar con el recorrido de Thoth AI Chat
Continuar con correo electrónico
O continuar con
Al hacer clic en "Iniciar sesión", acepta nuestros términos y condiciones. Términos de Uso & Política de privacidad
Pop-up title
Lorem ipsum dolor sit amet, te everti debitis assentior nam, ne illum utroque principes sed. Ridens phaedrum an vix, qui in dolore appareat.