Category: Physics

What type of reaction is sodium and water? A colourless solution is formed, consisting of strongly alkalic sodium hydroxide (caustic soda) and hydrogen gas. This is an exothermic reaction. What mixture did you mix when you mix salt and water? Answer: A solution is a homogeneous mixture with tiny particles. The particles are too small […]

Where is the best climate for humans? High mountains seem to be the best, in the area of neither common snow or heavy mosquitoes or heat. The mountains of Columbia or Mexico (Guadalajara) are nearly the same all year round in mild temperature. Now more human factors come into place, as well has having a […]

How will photosynthesis affect oxygen levels quizlet? The lack of carbon dioxide, not water is the limiting factor. High levels of oxygen in leaf cells reduce the amount of carbon dioxide converted during photosynthesis. A build up of oxygen will slow down reaction rate. Photosynthesis increases if the amount of oxygen is decreased. Why does […]

Is it bad to heat up water in the microwave? The bottom line Boiling water in the microwave is convenient and safe. The method is best used when heating small quantities of water, as microwaves can distribute heat unevenly. According to current research, no negative health effects are associated with boiling water in the microwave. […]

Can the sun ever stop shining? Yes, but not for a very, very long time. In about 5 billion years, the hydrogen in the Sun’s core will run out and the sun will not have enough fuel for nuclear fusion. So, in about 5 billion years, the Sun will stop shining. What will happen if […]

Is the work when running the same as when you slowly walk up? whether you walk up or run up stairs the same work is done. Faster movement upwards must be an increase of acceleration and so an increase in force and that will give an increase of work. Is there work done if you […]

Do plants grow better with more CO2? So how does more carbon dioxide lead to more plant growth anyway? Higher concentrations of carbon dioxide make plants more productive because photosynthesis relies on using the sun’s energy to synthesise sugar out of carbon dioxide and water. Can plants grow in pure carbon dioxide? Plants cannot live […]

What is included in basal metabolism? Basal metabolic rate (BMR) is the total number of calories that your body needs to perform basic, life-sustaining functions. These basal functions include circulation, breathing, cell production, nutrient processing, protein synthesis, and ion transport. Is a high BMR good or bad? Taken as a whole, these observations suggest that […]

Is pH 12 acidic or basic? With a pH greater than 7, milk of magnesia is basic. (Milk of magnesia is largely Mg(OH) 2.) Pure water, with a pH of 7, is neutral. With a pH of less than 7, wine is acidic….Example 12. Substance pH seawater 8.5 milk of magnesia 10.5 ammonia solution 12.5 […]

How far away should your phone be when sleeping? 3 feet How far should I keep my cell phone from my baby? three feet Is WIFI harmful for baby? Children Face Higher Health Risk From Cell Phones. The potential harm from microwave radiation (MWR) given off by wireless devices, particularly for children and unborn babies, […]