Is oil and vinegar a heterogeneous mixture? When oil and vinegar are mixed, they form a heterogeneous mixture with two layers, or phases. The oil phase floats on the water, or vinegar, phase. A heterogeneous mixture consists of two or more phases. At the beach, you realize that both ocean water and sand are mixtures. […]
What is inside of a ping pong ball?
What is inside of a ping pong ball? Celluloid is a thermoplastic made from nitrocellulose and camphor. Sometimes dyes and stabilizers are added. A typical ping pong ball might consist of 70% to 80% nitrocellulose, with up to 30% camphor. Small amounts of dye, ethanol, and stabilizers make the ball colorful, more stable, and less […]
What are the advantages of observation in research?
What are the advantages of observation in research? The biggest advantage of observational research has already been noted: it enables businesses to observe potential customers in a natural setting, which can reveal penetrating insights unavailable through other methods such as focus groups and surveys. What are the advantages and disadvantages of a survey? Advantages of […]
How do you solve an equation with two variables?
How do you solve an equation with two variables? In a two-variable problem rewrite the equations so that when the equations are added, one of the variables is eliminated, and then solve for the remaining variable. Step 1: Multiply equation (1) by -5 and add it to equation (2) to form equation (3) with just […]
What are the 7 areas of technology?
What are the 7 areas of technology? The Seven Areas of Technology Safety. The seven areas. Medical Technologies. Medical technology is used every day to save peoples’ lives. Agriculture and Biotechnology. Energy and Power Technologies. Communication Technology. Transportation Technology. Construction Technology. Inventions and Innovations. What are the 10 types of technology? Let’s have a look […]
What 3 things does a pedometer measure?
What 3 things does a pedometer measure? Pedometers come in all shapes and sizes. Simple devices simply measure steps, while others also include features such as time, alarm, distance, calories, etc. Are phone pedometers accurate? Accurate pedometers are useful tools to motivate and estimate physical activity. There are today free pedometer applications available for download […]
Which element in Period 2 has less mass?
Which element in Period 2 has less mass? lithium Is there a shortage of silicon? Global silicon chip shortage hits supply of phones, TVs, cars and Australia’s NBN. Samsung, which is the largest manufacturer of computer chips in the world, as well as one of the biggest users, has said the chip shortage comes amid […]
What are the main differences between the Thomson and Rutherford models?
What are the main differences between the Thomson and Rutherford models? The main difference between Thomson and Rutherford model of atom is that Thomson model does not give details about the atomic nucleus whereas Rutherford model explains about the nucleus. What is the difference between Rutherford and Bohr model? The main difference between Rutherford model […]
What is the parallax of error and how could we avoid it?
Is Earth an exoplanet?
Is Earth an exoplanet? Earth is the only planet known to harbor life and, as a result, the search for habitable and inhabited planets beyond the Solar System commonly focuses on analogs to our planet. However, Earth’s atmosphere and surface environment have evolved substantially in the last 4.5 billion years. What is the most Earth […]