Category: Physics

Is co2 a gas at room temperature? Carbon dioxide is a gas at room temperature while silicon dioxide is a solid at room temperature with a melting point of 1770°C. Why is CO2 gas and SiO2 solid? Every oxygen atom is bonded to two silicon atoms. Whereas, Silicon does not form double bonds with oxygen. […]

What should I not tell my parents about NICU? 5 Things Never To Say To Parents Of Preemies (And What To Say Instead) “She’s so teeny!” 2. ” “Babies need to be exposed to germs.” 4. ” “Thank God that’s over!” “Congratulations.” 2. ” “I’m here whenever you want to talk.” How much does a […]

Is 700 watt microwave powerful enough? When it comes to microwaves, wattage equals power. A 1,000-watt microwave will cook quickly and efficiently, so that’s a great baseline. Microwaves with 700 watts or less are slower and may not cook evenly. In general, the higher the wattage, the faster the cooking time. What is 700 watts […]

Does removing tarnish damage silver? The other is to reverse the chemical reaction and turn silver sulfide back into silver. The tarnish-removal method used in this experiment uses a chemical reaction to convert the silver sulfide back into silver. This does not remove any of the silver. Many metals in addition to silver form compounds […]

What happens to water when you heat it to 100 C? When heat is added to a pure body of water at 100° Celsius the temperature does not change. What happens instead is that the water beings to boil. This example is known as a change of state or a phase change. Why does the […]

How does the atomic radius change as you go 3 Mark I from left to right in a period II down a group in the periodic table? (a) (i) Atomic radius decreases. (ii) Atomic radius increases. The period number of an element is equal to the number of electron shells in its atom. These two […]

Whats the difference between renewable and nonrenewable resources? Nonrenewable energy resources, like coal, nuclear, oil, and natural gas, are available in limited supplies. Renewable resources are replenished naturally and over relatively short periods of time. The five major renewable energy resources are solar, wind, water (hydro), biomass, and geothermal. Is glass a renewable resource? Glass […]

Who know or knows? The difference is between singular designation (1) and plural (2). When uses as a responsive question, “Who knows?” will be the correct version. Who knows is correct but depending on the tense you could also use who knew or who would know. Does anyone want or wants? “Anyone wants…” is the […]

How much can the space shuttle carry? At launch, the Shuttle, external tank, solid rocket boosters and all the fuel combined had a total weight of 4.4 million pounds. The Shuttle could also carry a 65,000 payload. How much does the space shuttle cost? How much does the Space Shuttle cost? A. The Space Shuttle […]

What is the symbol for fog on a weather map? A fluffy cloud with the word mist underneath it obviously means that we will have mist. Clearly Fog is hard to draw, as the symbol for fog is simply the word with a frame around it. A fluffy cloud means that it will be cloudy. […]