Global communism is not necessarily the solution for humanity as it has been associated with authoritarian regimes and human rights abuses in the past. While the idea of a classless society and equal distribution of resources may seem appealing, the practical implementation of communism has often led to economic stagnation and political repression. Instead, a more balanced and inclusive approach that respects individual rights and promotes social justice through democratic means may be a better solution for humanity. **

Yes, there are solutions for wide nails. One option is to visit a podiatrist who can provide professional advice and treatment options. They may recommend custom orthotics or special shoes to help accommodate wide nails. Additionally, there are over-the-counter products such as wide nail clippers or nail files specifically designed for wider nails that can help with trimming and shaping. Regular maintenance and proper foot care can also help manage wide nails. **

Hydroxide solution turns universal indicator blue because it is a strong base with a high concentration of hydroxide ions. These hydroxide ions react with the indicator molecules, causing a color change to blue. On the other hand, alkane solutions do not contain hydroxide ions and are typically neutral or slightly acidic, so they do not cause the indicator to turn blue. **

A gummy smile can be treated through various methods, depending on the cause of the excessive gingival display. One common treatment is Botox injections into the upper lip to reduce its elevation and decrease the amount of gum tissue that is visible when smiling. Another option is crown lengthening surgery, which involves removing excess gum tissue to expose more of the tooth's surface. Orthodontic treatment or jaw surgery may also be recommended in some cases to correct the underlying skeletal or dental issues causing the gummy smile. It is important to consult with a qualified dentist or periodontist to determine the best treatment approach for each individual case. **

Hydroxide solution turns the universal indicator blue because it is a basic solution. Basic solutions have a higher concentration of hydroxide ions (OH-) which react with the indicator to produce a blue color. On the other hand, alkane solutions are neutral and do not have a significant concentration of hydroxide ions, so they do not cause the universal indicator to turn blue. **

When universal indicator solution is added to barium chloride solution, it will undergo a color change. Barium chloride is a strong base, so it will cause the universal indicator to change color to a deep purple or violet. This color change indicates that the solution has become more basic. The barium chloride solution has a high pH, which causes the universal indicator to shift towards the purple end of the pH scale. **

When universal indicator solution is added to a barium chloride solution, the indicator will change color based on the pH of the solution. Barium chloride is a salt that dissociates in water to form barium ions and chloride ions. The presence of these ions can affect the pH of the solution, leading to a color change in the universal indicator. The specific color change will depend on the pH of the barium chloride solution. **

The solution approach or strategy for problem b involves breaking down the problem into smaller, more manageable parts. This can be done by identifying the key components of the problem and then systematically addressing each component. Additionally, using problem-solving techniques such as trial and error, brainstorming, or using relevant mathematical or logical principles can help in finding a solution. It is also important to consider different perspectives and approaches to the problem in order to arrive at the most effective solution. **