Quimica I ¿Es el agua un Compuesto o un elemento? The JQuiz program creates question-based quizzes. Questions can be of four different types, including multiple-choice and short-answer. Specific feedback can be provided both for right answers and predicted wrong answers or distractors. In short-answer questions, the student's guess is intelligently parsed and helpful feedback to show what part of a guess is right and what part is wrong. The student can ask for a hint in the form of a "free letter" from the answer. The JCloze program creates gap-fill exercises. Unlimited correct answers can be specified for each gap, and the student can ask for a hint and see a letter of the correct answer. A specific clue can also be included for each gap. Automatic scoring is also included. The program allows gapping of selected words, or the automatic gapping of every nth word in a text. The JCross program creates crossword puzzles which can be completed online. You can use a grid of virtually any size. As in JQuiz and JCloze, a hint button allows the student to request a free letter if help is needed. The JMix program creates jumbled-sentence exercises. You can specify as many different correct answers as you want, based on the words and punctuation in the base sentence, and a hint button prompts the student with the next correct word or segment of the sentence if needed. The JMatch program creates matching or ordering exercises. A list of fixed items appears on the left (these can be pictures or text), wth jumbled items on the right. This can be used for matching vocabulary to pictures or translations, or for ordering sentences to form a sequence or a conversation. In addition, there is a sixth program called the Masher. This is designed to create complete units of material in one simple operation. If you are creating sequences of exercises and other pages that should form a unit, you may find the Masher useful. The Masher can also be used to upload Web pages not created with Hot Potatoes to the www.hotpotatoes.net server.
Quimica I ¿Es el agua un Compuesto o un elemento?
The JQuiz program creates question-based quizzes. Questions can be of four different types, including multiple-choice and short-answer. Specific feedback can be provided both for right answers and predicted wrong answers or distractors. In short-answer questions, the student's guess is intelligently parsed and helpful feedback to show what part of a guess is right and what part is wrong. The student can ask for a hint in the form of a "free letter" from the answer. The JCloze program creates gap-fill exercises. Unlimited correct answers can be specified for each gap, and the student can ask for a hint and see a letter of the correct answer. A specific clue can also be included for each gap. Automatic scoring is also included. The program allows gapping of selected words, or the automatic gapping of every nth word in a text. The JCross program creates crossword puzzles which can be completed online. You can use a grid of virtually any size. As in JQuiz and JCloze, a hint button allows the student to request a free letter if help is needed. The JMix program creates jumbled-sentence exercises. You can specify as many different correct answers as you want, based on the words and punctuation in the base sentence, and a hint button prompts the student with the next correct word or segment of the sentence if needed. The JMatch program creates matching or ordering exercises. A list of fixed items appears on the left (these can be pictures or text), wth jumbled items on the right. This can be used for matching vocabulary to pictures or translations, or for ordering sentences to form a sequence or a conversation.
In addition, there is a sixth program called the Masher. This is designed to create complete units of material in one simple operation. If you are creating sequences of exercises and other pages that should form a unit, you may find the Masher useful. The Masher can also be used to upload Web pages not created with Hot Potatoes to the www.hotpotatoes.net server.
Quiz
Es una Sustancia pura formada por diferentes elementos unidos en proporciones constantes o definidas
Compuesto
disolucion
mezcla homogénea
mezcla heterogénea
Un compuesto químico se diferencia de una mezcla porque sus componentes
Se separan por métodos mecánicos
Se separan por métodos químico
Conservan sus propiedades
Están en cualquier proporción
El agua es un compuesto porque:
Se descompone por calentamiento para pasar del estado líquido al gaseoso
Está formada por una mezcla de sólido, líquido y gas
Está formada por hidrógeno y oxígeno en volumenes iguales
El hidrógeno y el oxígeno que la forman se separan por un método químico llado electrólisis
Según la ley de las proporciones constantes o dfinidas, para la reaccion de síntesis del agua se hace reaccionar:
cualquier cantidad dde hidrógeno con un volumen de oxígeno
Cualquier cantidad de oxígeno con dos volumenes de hidrógeno
Dos volumes de hidrógeno con uno de oxígeno
Un volumen de hidrógeno con dos de oxígeno
La reacción para producir agua a partir de la combinación de 2 moléculas de hidrógeno más una molécula de oxígeno se clasifica como de:
Análisis
Sustitución
Síntesis
Pirolisis
La reacción mediante la Cual se separan los átomos de hidrógeno y oxígeno que forman la molécula de agua se clasifica como de:
