Why is francium so reactive? Explanation: Francium is an alkali metal in group 1/IA. All alkali metals have one valence electron. This makes it easier to remove the electron and makes the atom more reactive. Why is F2 so reactive? Why is fluorine gas (F2) reactive if it is already a molecule? This is because […]
Can the Y intercept change?
Can the Y intercept change? In general, when a line shifts in such a way that it maintains the same steepness as the original line, but moves up or down, or to the right or left, the y-intercept changes while the slope remained the same. If the line changes steepness, the slope must have changed. […]
Can a fish live without eyes?
Which of the following is considered to be a benefit of global trade?
Which of the following is considered to be a benefit of global trade? Increased specialisation, economies of scale, greater efficiencies in production, acquisition of needed resources, increased competition, technological advances and expanding markets, all made possible by international trade, contribute to increases in domestic output, and therefore to greater economic growth. In what way will […]
What is the direction of change in velocity?
What is the direction of change in velocity? An object which experiences either a change in the magnitude or the direction of the velocity vector can be said to be accelerating. This explains why an object moving in a circle at constant speed can be said to accelerate – the direction of the velocity changes. […]
Do the bubbles in boiling water contain air?
Do the bubbles in boiling water contain air? These bubbles are indeed air. Most water has some air dissolved in it. When water is boiled, it undergoes a physical change, not a chemical change. The molecules of water don’t break apart into hydrogen and oxygen. Do small bubbles mean water is boiling? So, when a […]
What do V shaped contour lines indicate the presence of?
What do V shaped contour lines indicate the presence of? Widely spaced contour lines indicate that the land is relatively level. A contour line that bends to form a V shape indicates a valley. The bend in the V points toward the higher end of the valley; this V points upstream, or in the direction […]
What is the difference in elevation between two side by side contour lines called?
What is the difference in elevation between two side by side contour lines called? A contour interval is the difference in elevation between two contour lines that are side by side. Remember that a contour interval is not the distance between the two lines – to get the distance you need to use the map […]
Does sulfur conduct electricity water?
Does sulfur conduct electricity water? Sulfur (S), also spelled sulphur, nonmetallic chemical element belonging to the oxygen group (Group 16 [VIa] of the periodic table), one of the most reactive of the elements. Pure sulfur is a tasteless, odourless, brittle solid that is pale yellow in colour, a poor conductor of electricity, and insoluble in […]