![Chemistry](/tpl/images/cats/himiya.png)
2) How does matter change? That was a question students were
investigating in class. Each group had an experiment to carry out and
then determine if the changes observed indicated a physical or
chemical change. Here is one groups experimental procedure and
results.
Before
Mix
Aler
ALS
1000 m
vinegar
84
Rowe
1000 ml
solution
34
Rece
84
RP
23c
Changing
Tempe
Temper
Temperature
What type of change occurred? Cite any appropriate evidence.
A)
Chemical; the Alka-Seltzer tablet dissolved and
disappeared.
B)
Chemical; nothing new was formed.
C)
Chemical; a gas was produced and the temperature
changed.
D)
Physical; the Alka-Seltzer tablet dissolved and
disappeared.
![answer](/tpl/images/cats/otvet.png)
Answers: 3
Other questions on the subject: Chemistry
![image](/tpl/images/cats/himiya.png)
Chemistry, 21.06.2019 23:00, marissastewart533
City a and city b had two different temperatures on a particular day. on that day, four times the temperature of city a was 8â° c more than 3 times the temperature of city b. the temperature of city a minus twice the temperature of city b was â’3â° c. what was the temperature of city a and city b on that day? city a was 5â° c, and city b was 4â° c. city a was 3â° c, and city b was â’1â° c. city a was 8â° c, and city b was â’3â° c. city a was 5â° c, and city b was â’5â° c.
Answers: 2
![image](/tpl/images/cats/himiya.png)
Do you know the correct answer?
2) How does matter change? That was a question students were
investigating in class. Each group had...
Questions in other subjects:
![Konu](/tpl/images/cats/mat.png)
Mathematics, 01.04.2020 04:16
![Konu](/tpl/images/cats/mat.png)
Mathematics, 01.04.2020 04:16
![Konu](/tpl/images/cats/mat.png)
Mathematics, 01.04.2020 04:16
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 01.04.2020 04:16
![Konu](/tpl/images/cats/mat.png)
Mathematics, 01.04.2020 04:16
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/istoriya.png)
History, 01.04.2020 04:16
![Konu](/tpl/images/cats/mat.png)
Mathematics, 01.04.2020 04:16
![Konu](/tpl/images/cats/biologiya.png)
Biology, 01.04.2020 04:16