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In **Chemistry** / **High School** | 2025-08-20

[Answered] Which chemical reaction involves the production of a gas? 1. [tex]2 Li ( s )+ F _2(g) \rightarrow 2 LiF ( s )[/tex] 2. [tex]Zn ( s )+2 HCl ( aq ) \rightarrow H _2(g)+ ZnCl _2( aq )[/tex] 3. [tex]HNO _3( I )+ H _2 O ( l ) \rightarrow H _3 O ^{+}( aq )+ NO _3{ }^{-}( aq )[/tex] 4. [tex]K _2 CrO _4( aq )+ Ba \left( NO _3\right)_2( aq ) \rightarrow BaCrO _4(s)+2 KNO _3( aq )[/tex]

In **Mathematics** / **College** | 2025-08-20

[Answered] Problems 5-8: Find the complex zeros of each polynomial function. Use your results to write the polynomial as a product of linear factors. 5. [tex]$f(x)=x^3+2 x^2-7 x-14$[/tex] 6. [tex]$f(x)=x^4+6 x^2+8$[/tex] 7. [tex]$f(x)=x^4+4 x^2-32$[/tex]

In **Mathematics** / **High School** | 2025-08-20

[Answered] For the function [tex]$f(x)=-3 x+3$[/tex] find [tex]$f(0)$[/tex].

In **Mathematics** / **College** | 2025-08-20

[Answered] The height of a rocket a given number of seconds after it is released is modeled by [tex]h(t)=-16 t^2+32 t+10[/tex]. What does [tex]t[/tex] represent? A. the number of seconds after the rocket is released B. the initial height of the rocket C. the initial velocity of the rocket D. the height of the rocket after t seconds

In **Mathematics** / **College** | 2025-08-20

[Answered] What number is $55 \%$ of 250?

In **Arts** / **High School** | 2025-08-20

[Answered] Animation skills include all of the following, except which? a. layering b. sketching c. drawing d. acting

In **Mathematics** / **High School** | 2025-08-20

[Answered] Get a slanting crease on the paper. Now, try to get another crease that is perpendicular to the slanting crease. a. How many right angles do you have now? Justify why the angles are exact right angles. b. Describe how you folded the paper so that any other person who doesn't know the process can simply follow your description to get the right angle.

In **Chemistry** / **High School** | 2025-08-20

[Answered] A $1,628 g$ sample of a hydrate magnesium iodide is heated until its mass is reduced to $1,072 g$ and all water has been removed. What is the formula of the hydrate? (MgI $\cdot x_{ H _2 O }$ )

In **Mathematics** / **College** | 2025-08-20

[Answered] The times it takes runners to complete a certain marathon are normally distributed with a mean of 4.6 hours and a standard deviation of 1.1 hours. What is the time for a runner with a [tex]$z$-score[/tex] of [tex]$-1.2$[/tex]? Enter your answer, rounded to the nearest hundredth, in the box.

In **Mathematics** / **College** | 2025-08-20

[Answered] $11+\frac{2}{9} b=23$