![subject](/tpl/images/cats/himiya.png)
Chemistry, 02.06.2021 19:50 lacourboud20005
7. Which trend is observed as the first four elements in Group 17 on the
Periodic Table are considered in order of increasing atomic number?*
O (1) Electronegativity decreases.
(2) First ionization energy increases.
(3) The number of valence electrons increases.
(4) The number of electron shells decreases.
![ansver](/tpl/images/cats/User.png)
Answers: 3
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Chemistry
![question](/tpl/images/cats/himiya.png)
Chemistry, 21.06.2019 18:30
For each of the following mixtures decide if filtering would be suitable to separate the substances. explain your answers. oil in water sugar in water sand in water chalk in water tea leaves in a cup of tea
Answers: 2
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 01:30
If 34.2 grams of lithium react with excess water, how many liters of hydrogen gas can be produced at 299 kelvin and 1.21 atmospheres? 2 li (s) + 2 h2o (l) yields 2 lioh (aq) + h2 (g)
Answers: 3
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 11:30
Voltaic cells produce a positive overall charge. what does this indicate? a. the reaction is likely to be endothermic. b. the reaction is spontaneous. c. the reaction is not likely to occur. d. the reaction is not spontaneous.
Answers: 3
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 23:30
The density of the solid phase of a substance is 0.90 g/cm3 and the density of the liquid phase is 1.0 g/cm3. a large increase in pressure will a. lower the freezing point b. raise the freezing point c. lower the boiling point d. raise the triple point e. lower the triple point
Answers: 1
You know the right answer?
7. Which trend is observed as the first four elements in Group 17 on the
Periodic Table are conside...
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 19.02.2021 19:50
![question](/tpl/images/cats/geografiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 19.02.2021 19:50
![question](/tpl/images/cats/mat.png)
Mathematics, 19.02.2021 19:50
![question](/tpl/images/cats/en.png)
English, 19.02.2021 19:50
![question](/tpl/images/cats/istoriya.png)
History, 19.02.2021 19:50
![question](/tpl/images/cats/mat.png)
Mathematics, 19.02.2021 19:50
![question](/tpl/images/cats/mat.png)
Mathematics, 19.02.2021 19:50
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
English, 19.02.2021 19:50
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 19.02.2021 20:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 19.02.2021 20:00
![question](/tpl/images/cats/mat.png)
Mathematics, 19.02.2021 20:00
![question](/tpl/images/cats/mat.png)
Mathematics, 19.02.2021 20:00
![question](/tpl/images/cats/mat.png)
Mathematics, 19.02.2021 20:00