the answer is 1
F2 is a rating on the Fujita scale, which assess tornado intensity based on damage. The scale runs from F0 at the weakest to F5 at the strongest. F2 indicates a strong tornado (most tornadoes are F0 or F1) that can tear the roof from a well-built house and lift cars off the ground.
Trees can be largely torn apart by an F2 tornado but most buildings will remain standing. An F2 tornado will remove the roof from a typical frame house but leave most walls standing. Weak structures such as mobile homes, barns, and garages will likely be destroyed.
If the friction force is 4 N, the acceleration of the object would depend on its mass. Using Newton's second law (F = ma), if the mass of the object is known, you can calculate the acceleration by dividing the force (4 N) by the mass.
The formula for calculating the frequency of a Lissajous figure is f = (n2-n1) * (f1-f2) / (2 * (n1+n2)), where f is the frequency of the Lissajous figure, n1 and n2 are the integer ratios of the frequencies f1 and f2 on the x and y axes respectively.
F2 is the beginning of what is called a strong tornado. On the original Fujita scale F2 wind speeds were estimated at 113 to 157 mph. On the Enhanced Fujita scale this was adjusted to 111 to 135 mph, which is believed to correlate better with the damage done. Typical F2 damage includes roofs torn from well-built houses with trailers, barns, and garages completely destroyed. Most walls will be left standing in a well-built house, though weaker ones may collapse. Cars may be lifted and tossed short distances. Large trees will be snapped. Size is not a factor in rating a tornado; ratings are instead based in the severity of the damage done. However, there is a general trend for stronger tornadoes to be larger. F2 tornadoes typically range between 100 yards and a quarter of a mile wide but can be smaller or larger than this in some cases.
Of these choices:a. Ca(s) + F2(g) → CaF2(s)b. Ca(g) + F2(g) → CaF2(s)c. Ca2+(g) + 2F−(g) → CaF2(s)d. Ca(g) + 2F(g) → CaF2(s)
Its already balanced.
There are 0.18 moles of Ca2+ ions in 0.18 moles of CaF2.
This is a single displacement reaction where fluorine displaces chlorine in calcium chloride to form calcium fluoride and chlorine gas.
Fluorine, the element has a symbol/"formula" F. As a charged ion it has a -1 charge = F- Otherwise, fluorine is a diatomic molecule= F2 Calcium is also an element with symbol/"formula" Ca. As an ion it has a +2 charge, so it can be written as Ca2+.
The balanced chemical equation would be: NF3 + F2 -> N + 3F2 The coefficient for fluorine would be 2 and the symbol is F2.
Denoting ff as f2 etc, f2 + f + f3 + f = f3 + f2 + 2f
The coefficient is 1 for nitrogen and 3 for fluorine in the balanced equation for the reaction between nitrogen trifluoride (NF3) and nitrogen (N2) to form nitrogen gas (N2) and fluorine gas (F2). The symbol for this reaction is: 2 NF3 + N2 -> 3 F2 + 2 N2
F2 < F2- < F2+. This is because F2 has no extra electrons or missing electrons, while F2- has an extra electron making it more stable than F2. F2+ is the least stable as it has lost an electron, creating an electron deficiency.
yes, because it stinks! LOL haha
Yes, this reaction is possible. Fluorine will displace chlorine from some compounds.
The reaction HCl + F2 --> HF + Cl2 is a redox reaction, specifically a single replacement reaction. Hydrogen chloride (HCl) reacts with fluorine (F2) to produce hydrogen fluoride (HF) and chlorine (Cl2).