Changes in state are physical changes. Let's take water as an example. H2O. In the gaseous state, we sometimes call it steam or water vapor; it's chemical formula is still H2O. In the liquid state and in the …

Given the following equation: C6H8O7 + 3NaOH --> Na3C6H5O7 + H2O. What is the percentage by mass of citric acid in the orange juice? How many grams of HCI are there in 100.0 mL of …

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Answers created by Anjali G Back to user's profile Next What is the equation of the parabola that has a vertex at (5,2) and passes through point (6,9)? How to integrate ∫ 2lnx x dx ? How do you solve the …

I assume that the poster meant: y=e^x tan sqrt {5x} By rewriting the square-root as the 1/2-power, y=e^xtan (5x)^ {1/2} Let us now find the derivative. By Product Rule, y'= (e^x)'cdot tan (5x)^ …

Rule 1: sqrt {"nonnegative"} 7-ln (x-1) ge0 by adding ln (x-1), => 7 ge ln (x-1) by raising e to both sides, => e^7 ge e^ {ln (x-1)}=x-1 by adding 1, => e^7+1 ge x Rule2: ln ("positive") x-1 > 0 by adding 1, => x …

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Boyle's law holds that for a given quantiy of gas, P prop 1/V, or PxxV=k; so if the pressure is doubled the the volume is halved, and vice versa. Given that P and V are inversely proportional, if the pressure …

The charge on the sodium ion, Na^(+) is +1. The charge on the chloride Cl^- is -1. The physical movement of an ion is caused by electrostatic attraction. Thus, a Cl^"-" ion will move towards a …

Apr 13, 2018 · Explanation: We want to solve #I=intsin (4x)e^ (sin (2x))dx# Using the trig identity #color (blue) (sin (2a)=2cos (a)sin (a)# #I=2intcos (2x)sin (2x)e^ (sin (2x))dx ...