Chemistry, 25.11.2021 15:40 cuzhernamesari
a A student heated a mixture of iron filings and sulfur strongly. He saw a red glow spread through the mixture as the reaction continued. At the end of the experiment a black solid had been formed. a Explain what the red glow indicates. b Give the chemical name of the black solid. c Write a word equation and a balanced chemical equation to represent the reaction which has taken place. d The black solid is a compound. Explain the difference between the mixture of sulfur and iron and the compound formed by the chemical reaction between them. a a
Answers: 1
Chemistry, 22.06.2019 08:30, audrey1256
Which change in temperature is the smallest? a change of 1 thomson degree a change of 1 kelvin degree a change of 1 fahrenheit degree a change of 1 celsius degree
Answers: 1
Chemistry, 22.06.2019 21:20, brendonvernon8
Juju.01) 5 geologic events a group of students designed an experiment in an ice rink to represent the solar system. the steps of the experiment are listed below. 5: geologic events 1. choose a student to represent the sun. the planets are represented by two tennis balls. 2. ask the student to hold the tennis balls in each palm and spin on the ice with arms stretched out. 3. ask the student to draw in the arms after about 10 spins. 4. observe the student's arms rotate faster when they are closer to the body. 05 geologic events enors) the experiment most likely demonstrates that (2 points) 07 discussion-based sessment/module planets exert gravitational force on the sun the sun exerts gravitational force on the planets 3.07 discussion-based ssessment speed of a planet depends on its distance from the sun new version available! (3.0.119) get it now submit 18.07: module exam description
Answers: 3
a A student heated a mixture of iron filings and sulfur strongly. He saw a red glow spread through t...
Mathematics, 31.03.2021 07:40
Mathematics, 31.03.2021 07:40
Mathematics, 31.03.2021 07:40
Chemistry, 31.03.2021 07:40
Mathematics, 31.03.2021 07:50
History, 31.03.2021 07:50
Mathematics, 31.03.2021 07:50