Is it possible for humans to walk on water? There’s a simple reason you can’t walk on water: Humans are so big that the force of gravity overcomes the so-called surface tension of water, making us sink. By vigorously rowing along the surface, striders create swirls that help propel them forward, all without rupturing the […]
How many elements are there in the transition metals?
How many elements are there in the transition metals? 35 elements What group number is transition metals? Many scientists describe a “transition metal” as any element in the d-block of the periodic table, which includes groups 3 to 12 on the periodic table. In actual practice, the f-block lanthanide and actinide series are also considered […]
What happens when you overcharge a capacitor?
What happens when you overcharge a capacitor? Once a capacitor has more than rated voltage applied to it the chances for a catastrophic even increase. The first signs of overvoltage are a swelling of the capacitor case and leakage of the electrolyte ( in the case of a capacitor with an electrolyte such as aluminum […]
How long will it take to lose 50 lbs on 1200 calories a day?
How does dissolve work?
How does dissolve work? A solution is made when one substance called the solute “dissolves” into another substance called the solvent. Dissolving is when the solute breaks up from a larger crystal of molecules into much smaller groups or individual molecules. They do this by pulling away the ions and then surrounding the salt molecules. […]
How does the mass of the products in a chemical reaction compare?
How does the mass of the products in a chemical reaction compare? During a chemical change, the composition of matter always changes. In a chemical reaction, how does the mass of the reactants compare with the mass of the products? During a chemical reaction, the mass of the products is always equal to the mass […]
Where do the majority of greenhouse gases come from?
Where do the majority of greenhouse gases come from? In the United States, most of the emissions of human-caused (anthropogenic) greenhouse gases (GHG) come primarily from burning fossil fuels—coal, hydrocarbon gas liquids, natural gas, and petroleum—for energy use. Which is not a greenhouse gas? Examples for greenhouse gases: Carbon dioxides, Methane, Chlorofluorocarbon, sulphur dioxide. Whereas […]
What are the two types of pure substances?
What are the two types of pure substances? The two main types of pure substances are compounds and elements. They consist of a single type of particle or compound. What are pure substances Class 9? A pure substance is a substance which has only one type of atoms or molecules thereby having a constant composition […]
What plants are in the tropical dry forest?
What plants are in the tropical dry forest? Drought-resistant epiphytes (orchids, bromeliads and cacti) may be abundant. The trees have thicker, more ridged, bark; deeper roots without buttresses; much more variable leaves, including many compound-leaved legumes; and more species with thorns. How do humans affect the tropical dry forest? Deforestation and farming land for cattle […]