The element X is Copper.
Explanation :
Reactive metals from 3d transition series like Cu are very reactive because their standard reduction potential values are low.
Hence, when treated with a acid it tends to liberate hydrogen gas.
Also, because of its low reduction potential value, it can easily displace lead and tin from their salt solutions.
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Answer:
Gallium, Germanium, Arsenic, Selenium, Bromine and Krypton
Explanation:
Based on periodic trends, the atom that has a larger ionization energy than calcium are Gallium, Germanium, Arsenic, Selenium, Bromine and Krypton.
Across the period, the ionization energy increases from left to right.
- Ionization energy is the energy required to remove the most loosely held electron within an atom.
- As you go from left to right, the ionization energy increases rapidly.
- The elements to the right of Ca will have a higher ionization energy compared to Ca.
Answer:
potassium and sodium
Explanation:
when they react with cold water they produce a metal hydroxide and hydrogen gas
Answer:
Explanation:
1 moles Gallium to grams = 69.723 grams
2 moles Gallium to grams = 139.446 grams
3 moles Gallium to grams = 209.169 grams
4 moles Gallium to grams = 278.892 grams
5 moles Gallium to grams = 348.615 grams
6 moles Gallium to grams = 418.338 grams
7 moles Gallium to grams = 488.061 grams
8 moles Gallium to grams = 557.784 grams
9 moles Gallium to grams = 627.507 grams
10 moles Gallium to grams = 697.23 grams
Answer:
1.72 cm³
Explanation:
0.01932 kg/cm³
density is in kilograms
33.3 g into kilograms is 0.0333 kilograms
1.72360248447
0.01932 kg/cm³ means
0.01932 kg/ 1 cm³
I want kg units to cancel out so that I'm left with cm³
0.01932 kg/ 1 cm³ = 1 cm³/.01932 kg
1 cm³/.01932 kg times 0.0333 kg =
0.0333 cm³kg /.01932kg =
kg units cancel out
0.0333 cm³/.01932 which =
1.72360248447 cm³
