Find the ΔHr0 for the

Find the ΔHr0 for the reaction:Na2CO3(s) +2HNO3(aq) → 2NaNO3(s) +CO2(g) +H2O(l) ΔHr0=+125.7kJ ΔHr0=-67.2kJ ΔHr0=-45.3kJ
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2. asked by Anna
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Given the function: f(x) = x^2 + 1 / x^2 - 9a)find y and x intercepts b) find the first derivative c) find any critical values
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2. asked by Gabby
3. 937 views
Given the function: f(x) = x^2 + 1 / x^2 - 9a)find y and x intercepts b) find the first derivative c) find any critical values
1. 1 answer
2. asked by Gabby
3. 1,858 views
Let equation of an hyperbola be y^2-4x^2+4y+24x-41=0a. Find the standard form b. Find the center c. Find the vertices d. Find
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2. asked by Anonymous
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For the following graph:a. Find the domain of f. b. Find the range of f. c. Find the x-intercepts. d. Find the y-intercept. e.
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2. asked by seth
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If $500 is invested at an interest rate of 4.5% per year, find the amount of the investment at the end of 11 years for the
1. 2 answers
2. asked by NHick
3. 2,228 views
For the following pair of functions, f(x)-x+2, g(x)-√x-1find each of the following and state its domain: a.) find (f+g)(x)
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2. asked by Chris
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R(x)=x^2+x-6________ x-3 1. find the domain and y-intercepts 2. find the x-intercepts 3. find the real solution of the equation
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2. asked by ladybug
3. 1,238 views
Using the figure below, writeexpression that gives the recquired unknown value. 1. If A = 15° and c = 37, find a. 2. If A =
1. 1 answer
2. 80 views
Using the expression 56xy + 5 -6x + y/20,find the following:a. Find two sums. b. find the terms of the expression. c. find a
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2. asked by Bria
3. 1,624 views