Is pure gold a pure substance or mixture?

Gold is only a single element, and it is a mixture of many elements. The most common element in gold is gold, but there are also silver, brass, and other elements in gold. Each element has a different properties, so gold is often mixed together to create other substances. What is the price of pure ... Read more...

Whats next for Sao?

There is no set plan for Sao, as the future of the city is still in question. However, the city is in a transitional period, and there are a number of plans in place to improve the city. One of the most important plans is the SaoPaulo 2020 Plan, which is designed to improve the ... Read more...

Is baking bread a chemical change?

Baking bread is a chemical change. The baking soda and cream of tartar are used to make the dough rise and the baking powder to make the bread brown. What are some possible consequences of milk souring? Milk souring can lead to a range of health problems, from diarrhea to food poisoning. It's also a ... Read more...

When was wheel first invented?

The wheel was invented by a man named Parmenides in the 5th century BC. What did the first person to create the wheel do? The first person to create the wheel was a man named Mesopotamian-Greek named Pteptah. He invented the wheel in about 1500 BC. What are the benefits of the wheel? There are ... Read more...

What is the Lewis structure of SiO2?

The Lewis structure of SiO2 is a sheet-like metal oxide that has a high surface area. The sheet-like structure allows SiO2 to easily adsorb and store energy, which makes it an excellent material for LED light bulbs and other energy-efficient devices. What is the chemical formula for sulfur tetrachloride? The chemical formula for sulfur tetrachloride ... Read more...