![subject](/tpl/images/cats/himiya.png)
Chemistry, 31.07.2019 23:00 andrejr0330jr
How many liters of 15 acid and 33 acid should be mixed to make 40 liters of 21 acid solution answer key?
![ansver](/tpl/images/cats/User.png)
Answers: 1
Another question on Chemistry
![question](/tpl/images/cats/himiya.png)
Chemistry, 21.06.2019 22:50
Achemical reaction (also known as a chemical change) produces substances that are chemically different from the starting materials. an example of a chemical reaction is the formation of water from hydrogen and oxygen gas.in a physical change, a substance changes its physical appearance but not its chemical identity. an example of physical change is the formation of liquid water from solid water, a familiar process called melting. physically, liquid water looks very different from solid water (ice) but the chemical identity, water, is the same for both. which of following changes that affect the composition of our atmosphere involve physical changes and which involve chemical reactions? oxygen gas changes to ozone during thunderstorms carbon dioxide is produced by the combustion of gasoline in an automobile engine. when coal, oil, and natural gas are decomposed in landsills they produce methane gas. freezing rain develops when a warm air mass overrides a cold air mass. fog forms from water vapor when the temperature drops below the dew point
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 21.06.2019 23:30
Calculate the expected ph values of the buffer systems from the experiments (a,b,c,d), using the henderson- hasselbalch equation, ph-pka+log[a-]/[ha]. use for pka values carbonic acid= 6.37, and acetic acid= 4.75.
Answers: 2
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 03:00
Which of these would be caused by a chemical change? a) the formation of lava. b) sedimantary rock layering over time. c) metamorphic rock forming from igneous. d) metamorphic rock eroding to form sedimentary rock.
Answers: 3
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 05:30
Transportation is the largest single source of air pollution in the united states. air pollution can harm the environment and human health. which technology could offer a solution to this problem? mufflers that reduce noise motors that run on electricity tires that improve gas mileage
Answers: 3
You know the right answer?
How many liters of 15 acid and 33 acid should be mixed to make 40 liters of 21 acid solution answer...
Questions
![question](/tpl/images/cats/ap.png)
Advanced Placement (AP), 02.12.2021 03:10
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 02.12.2021 03:10
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 02.12.2021 03:10
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 02.12.2021 03:10
![question](/tpl/images/cats/mat.png)
Mathematics, 02.12.2021 03:10
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/es.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 02.12.2021 03:10
![question](/tpl/images/cats/health.png)
Health, 02.12.2021 03:10
![question](/tpl/images/cats/en.png)
English, 02.12.2021 03:10
![question](/tpl/images/cats/User.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 02.12.2021 03:10
![question](/tpl/images/cats/mat.png)
Mathematics, 02.12.2021 03:10
![question](/tpl/images/cats/ekonomika.png)
Business, 02.12.2021 03:10
![question](/tpl/images/cats/en.png)