![subject](/tpl/images/cats/himiya.png)
Two chemicals are combined in a beaker and react. What data would provide the best evidence for determining if the reaction absorbed or released thermal energy?
A The masses of the substances before and after the reaction
B The temperature inside the beaker before and after the reaction
C Whether or not light and sound were produced during the reaction
D How long it took for the reaction to take place once the chemicals combined
![ansver](/tpl/images/cats/User.png)
Answers: 3
Another question on Chemistry
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 07:10
An experimental procedure requires a 10 ml of acid to be dissolved
Answers: 2
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 08:40
For each of the following compounds, write the formula then predict whether it would be a strong, weak, or non-electrolyte when placed in di water. for the ionic compounds only, put (s) or (aq) after the forrmula formula strong, weak or non electrolyte? a calcium hydroxide b. silver carbonate c. lead(ii) sulfate d. phosphorus trifluoride e. sodium phosphide f barium sulfate g. strontium acetate h. zinc nitrate
Answers: 3
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 11:30
If blood contains 150g of hemoglobin per liter of blood, how much hemoglobin would be contained in 10 ml of blood
Answers: 2
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 18:20
Which reason best explains why metals are malleable? a)because they have delocalized electrons b)because they have localized electrons c)because they have ionic bonds d)because they have rigid bonds
Answers: 2
You know the right answer?
Two chemicals are combined in a beaker and react. What data would provide the best evidence for dete...
Questions
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 21.05.2020 22:08
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 21.05.2020 22:08
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
English, 21.05.2020 22:08
![question](/tpl/images/cats/biologiya.png)
Biology, 21.05.2020 22:08
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 21.05.2020 22:08
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 21.05.2020 22:08
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 21.05.2020 22:08
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 21.05.2020 22:08