![subject](/tpl/images/cats/himiya.png)
Which of the following laboratory procedures best illustrates the law of conservation of mass? A) Recording the rise in water level when a 25g piece of wood is placed in 200mL of water
B) synthesizing 36g of h20 by combining 4g of H2 and 32g of O2
C) Heating 32g of S and 56g of Fe to form 80g of FeS
D) Measuring precisely .495g of sulfur powder
![ansver](/tpl/images/cats/User.png)
Answers: 1
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Chemistry
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 20:30
Consider the following unbalanced equation for the combustion of hexane: αc6h14(g)+βo2(g)→γco2(g)+δh2o(g) part a balance the equation. give your answer as an ordered set of numbers α, β, γ, use the least possible integers for the coefficients. α α , β, γ, δ = nothing request answer part b determine how many moles of o2 are required to react completely with 5.6 moles c6h14. express your answer using two significant figures. n n = nothing mol request answer provide feedback
Answers: 2
![question](/tpl/images/cats/himiya.png)
Chemistry, 23.06.2019 05:00
Which of the following describes qualitative data? a) recording the temperature of a solid as it is warmed. b) noting the color of a solution as it is heated. c) measuring the volume of an object by water displacement. d) taking the mass of an object using a balance.
Answers: 2
![question](/tpl/images/cats/himiya.png)
Chemistry, 23.06.2019 05:30
Astudent made the lewis dot diagram of a compound as shown. mg is written with two dots shown on its top. an o is written on each side of mg. each o has six dots around it. an arrow is shown from one dot on mg toward the vacant space around the o on the right. another arrow is shown from the other dot on mg toward the vacant space around the o on the left. the title of the art is students lewis dot model. what is the error in the lewis dot diagram? an o atom should transfer all its six electrons to mg because the formula is mgo. both electrons of mg should be transferred to one o atom because the formula is mgo. the electrons should be transferred from each o atom to mg because mg has fewer electrons. the number of dots around mg should be four because it has to transfer two electrons to each o.
Answers: 2
![question](/tpl/images/cats/himiya.png)
You know the right answer?
Which of the following laboratory procedures best illustrates the law of conservation of mass? A) Re...
Questions
![question](/tpl/images/cats/mkx.png)
Arts, 18.11.2020 05:30
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 18.11.2020 05:30
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 18.11.2020 05:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/ekonomika.png)
Business, 18.11.2020 05:30
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
History, 18.11.2020 05:30
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 18.11.2020 05:30