Where’s the circle? It could mean anything unless there’s a picture of the circle
Answer:
Coordinate geometry is one of the most important and exciting ideas of mathematics. In particular it is central to the mathematics students meet at school. It provides a connection between algebra and geometry through graphs of lines and curves. This enables geometric problems to be solved algebraically and provides geometric insights into algebra.
The invention of calculus was an extremely important development in mathematics that enabled mathematicians and physicists to model the real world in ways that was previously impossible. It brought together nearly all of algebra and geometry using the coordinate plane. The invention of calculus depended on the development of coordinate geometry.
Explanation:
A physical change changes the form of the matter, but does not change the substance itself.
A chemical change affects the substance and turns into a different substance.
Ex:
Physical change: Water freezes- its changes form, but it is still water
Chemical change: Wood burns- it is changing its makeup from wood to ash and various gases. You cant identify it as wood anymore.
Answer:
Kinetic Rate Laws. The rate of the crystal violet/NaOH reaction is given by the following generalized rate law. Rate = k [OHG] [CV]. (1) x y. 25. 30.
The reaction was carried out by varying the concentrations of [CV] within the range 1.00 × 10-5 M-7.00 × 10-5 M at 298 K and fixed [NaOH]o=1.67 × 10-3 M and μ=0.085 M (KNO3). The reaction is dependent on the [CV] as observed rate constant (kobs) increases with increase in [CV] as shown in Table 1.
Explanation:
to calculate the room temperature rate constant for the reaction. BACKGROUND. Reaction Chemistry. Chemical kinetics is the study of reaction rates.
<u>Answer:</u>
<em>The mole to mole ratio between oxygen gas and water is 2 : 1</em>
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<u>Explanation:</u>
Balancing is making the number of atoms of each element same on both the sides (reactant and product side).
To find the number of atoms of each element we multiply coefficient and the subscript
For example
contains
5 × 1 = 5 ,Ca atoms and
5 × 2 = 10, Cl atoms
If there is a bracket in the chemical formula
For example
we multiply coefficient × subscript × number outside the bracket to find the number of atoms
(Please note: 3 is the coefficient, and if there is no number given then 1 will be the coefficient )
So
3 × 3 = 9 , Ca atoms
3 × 1 × 2 = 6, P atoms
3 × 4 × 2 = 24, O atoms are present.
So
The balanced chemical equation is
The number which stands in front of the chemical formula is the coefficient and it represents the number of moles of each substance.
So we see here 2 is the coefficient of and 1 is the coefficient of
So the mole ratio of water and oxygen gas is 2 : 1
(Answer)