Answer:
75 g of water
Explanation:
Thermal energy refers to <em>an object's internal energy.</em> This internal energy is brought about by<em> kinetic energy</em> <em>(energy due to motion).</em> If two objects have the same mass, their thermal energy can be drawn upon the presence of varying temperatures. However, in the case above, both water and metal pot have the same mass and temperatures. Thus, we have to compare both of them in terms of "specific heat" (not on the basis of temperature).
Specific heat is <u>a form of thermal energy.</u> It refers to the object's resistance when there is a change in temperature. Water is said to have more specific heat than metals. In fact, is has a "high specific heat." This means that once the water is heated, it takes a longer time for it to cool down compared to metals. This is because<em> its heat loss is in a slower process. </em>
Thus, a 75 g of water has more thermal energy than a 75 g of metal pot.
At STP, P = 1 atm, and T = 0 C
Thus, PV = nRT => V = nR(273). We will use this later...
if you have 35.4 Ca, and the molar mass of Ca is 40.08, you get .883 moles Ca. Thus, since it takes 2 moles of Ca to form a reaction, you only need half the moles of Ca of O2. Thus, n(O2) = .883/2
Tie this back to the first equation and you get
V = .442 * <span>0.082057(which is R) * 273 = 9.9 L</span>
Answer:
polar covalent
Explanation:
The structure has a Sulfur atom in the middle with 6 Fluorine atoms surrounding this structure. Each fluorine atom has 3 unshared pairs to achieve the octet rule. In addition, this bond is polar covalent.
The S waves arrive second
Answer:
N2 (but the 2 is a subscript) i think
Explanation:
i looked it up