In this item, we are simply to find the ions that may bond and are able to form a formula unit. We are also instructed to give out their name. There are numerous possible combinations of ions to form a compound. Some answers are given in the list below.
1. Na⁺ , Cl⁻ , NaCl ---> sodium chloride (this is most commonly known as table salt)
2. C⁴⁺ , O²⁻ , CO₂ ---> carbon dioxide
3. Al³+ , Cl⁻ , AlCl₃ ----> aluminum chloride
4. Ca²⁺ , Cl⁻ , CaCl₂ ---> calcium chloride
5. Li⁺ , Br⁻ , LiBr ---> lithium bromide
6. Mg³⁺ , O²⁻ , Mg₂O₃ ----> magnesium oxide
7. K⁺ , I⁻ , KI ---> potassium iodide
8. H⁺ , Cl⁻ , HCl --> hydrogen chloride
9. H⁺ , Br⁻ , HBr ----> hydrogen bromide
10. Na⁺ , Br⁻ , NaBr ---> sodium bromide
Answer:
141.89 dm^3
Explanation:
The equation of the reaction is;
2H2O2(aq) --------->2H2O(l) + O2(g)
Now , we are told that the mass of hydrogen peroxide decomposed was 315g. Number of moles of hydrogen peroxide in 315g of the substance is given by;
Number of moles= mass/molar mass
Molar mass of hydrogen peroxide= 34.0147 g/mol
Number of moles= 315g/34.0147 g/mol = 9.26 moles of hydrogen hydrogen peroxide.
From the reaction equation;
2 moles of hydrogen peroxide yields 1 mole of oxygen
9.26 moles of hydrogen peroxide yields 9.26 ×1/2 = 4.63 moles of oxygen
From the ideal gas equation;
Volume of the gas V= the unknown
Pressure of the gas P= 0.792 atm
Temperature of the gas= 23°C +273 = 296 K
Number of moles of oxygen = 4.63 moles of oxygen
R= 0.082atmdm^3K-1mol-1
Hence, from PV=nRT
V= nRT/P
V= 4.63 × 0.082 × 296/0.792 = 141.89 dm^3
Answer:
Fission is the splitting of a large atom into two or more smaller ones. Fusion is the fusing of two or more lighter atoms into a larger one. Fission reaction does not normally occur in nature.
Explanation:
Quizlet
The spaceship does not have any gravitational pull. A spaceship can not produce its own gravity like Earth does.
A crystalline solid is brittle, has a high melting point, and has low electrical conductivity is ionic bonds between metals and nonmetals.
On the basis of structure, ca F2 is the most brittle
hope this helps
