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1. ### For which of the following types of ionic compounds are most examples insoluble in water? nitrates sulfates chlorides hydroxides?

... Group I elements (Li+, Na+, K+, Cs+, Rb+) are soluble . There are few exceptions...

1 Answers · Science & Mathematics · 05/06/2019

2. ### does silver nitrate + sodium suphate = ? a precipitate?

... Group I elements (Li+, Na+, K+, Cs+, Rb+) are soluble . There are few exceptions...

1 Answers · Science & Mathematics · 26/05/2019

3. ### Statistics Basic Probability Help?

... general formula for exactly k successes is: P(X = k) = C(n,k) * p^k * q^k n : number of trials (e.g. 5 flips) k...

1 Answers · Science & Mathematics · 14/09/2019

4. ### Developing ODE from data?

...atm is the atmospheric concentration, we would model this as: dC(t)/dt = -k*(C(t) - C_atm) where k is some positive rate constant. Note that the...

2 Answers · Science & Mathematics · 06/08/2019

5. ### can someone help?

... of n people chosen k at a time. C(n,k) = n! / (k! (n-k)!) C(10,3) = 10! / (3! 7!) = 120 I have trouble remembering the formula, so...

4 Answers · Science & Mathematics · 07/10/2019

6. ### Hyperbolas?

Rules (−k)^2/a^2 - (x-h)^2/b^2 = 1 , c = √(a^2+b^2) vertices (h , k+a) and (h , k-a) Foci (h , k + c) and (h , k - c) the asymptotes y - k = ±(a/b)(x-h)

1 Answers · Science & Mathematics · 13/05/2019

7. ### What's your favorite sport?

To watch it's professional football, but only when the K.C. Chiefs are playing.

13 Answers · Entertainment & Music · 08/11/2018

8. ### Find Foci and vertices of the ellipse I)9(x-3)^2+5(y+5)^2=45 2)9(x+4)^2+13(y-1)^2=117?

...and F(h+c, k) ii/ if b>a --->c = √( b^2 - a^2) then F(h , k-c) and F(h , k+c)

1 Answers · Science & Mathematics · 27/11/2018

9. ### Write the equation of an ellipse centered at the origin with foci at (0, -3) and (0, 3) and a major axis of 10.?

...k±a)  length of major axis = 2a  co-vertices (h±b,k)  foci (h,k±c), c² = a²-b² Apply your given information...

4 Answers · Science & Mathematics · 29/05/2019

10. ### Chemistry Question: Convert 124.3 Fahrenheit to Celsius and to Kelvin?

...2 = C 51 + 0.2777777777.... = C 51.2777777.... = C 51.28 = C K = C + 273.15 K = 51.27777.... + 273.15 K = 324.4277777.... K = 324.4

3 Answers · Science & Mathematics · 24/06/2019