Answer: A
Explanation:
In both equations 2 things make one product
Answer:
Element X is Arsenic (As)
Explanation:
- Elements in the periodic table are either metals, non-metals or metalloids.
- Metals are elements that react by losing electrons to obtain a stable configuration and form cation.
- Non-metals are those elements that react by gaining electrons to form a stable configuration and form anion.
- Metalloids are elements in the periodic table that have both metallic and non-metallic properties.
- Examples of metalloids include Selenium, Arsenic, Boron, etc.
- Arsenic is a metalloid in period 4 (four energy levels) with five valence electrons.
The atomic symbol for Iron is Fe, as the Latin word for Iron is <em>ferrum</em>.
Answer:
D
Explanation:
Double Displacement reaction
Both sides are balanced with option D
