GradePack

    • Home
    • Blog
Skip to content
bg
bg
bg
bg

Author Archives: Anonymous

  Los señores Guzmán ______________________ por sus hijos. (…

  Los señores Guzmán ______________________ por sus hijos. (preocuparse)   A. preocupar B. se preocupan

Read Details

  afeitarlavarquedarcepillar leerquitardespertarmirar…

  afeitarlavarquedarcepillar leerquitardespertarmirar salirducharponersentar Nosotros tres ___________________ en la mesa, tomamos café y hablamos de los planes para el día.  A. nos bañamos B. nos sentamos.

Read Details

Select the appropriate verb in the past tense-preterite. Aye…

Select the appropriate verb in the past tense-preterite. Ayer tú ______________________ mal. (preferir, sentirse) A. se sintió B. te sentiste

Read Details

In a recent class discussion, we addressed the following pai…

In a recent class discussion, we addressed the following painting. Students had some great things to say, as usual. It was painted by _____________________ and conveys sentiments _________________ in America in the artists’ time.

Read Details

Teniae coli are found on ________ are made from the ________…

Teniae coli are found on ________ are made from the ________ layer.

Read Details

4 OH-” is shown above the steel pipe, indicating the reactio…

4 OH-” is shown above the steel pipe, indicating the reaction at the steel surface. Below the magnesium rod, the chemical equation “Mg -> Mg2+ + 2e-” represents the anodic reaction that occurs at the magnesium rod. The background of the image is a gradient from white on the left to a light gray on the right.” width=”512″ height=”236″ loading=”lazy” data-api-endpoint=”https://asuce.instructure.com/api/v1/courses/9094/files/3267547″ data-api-returntype=”File”> Steel undergoes corrosion in the presence of water and oxygen. If a steel pipe is buried beneath the ground, see the diagram above, it can be protected from corrosion by using a magnesium metal rod driven into the ground close by. If the magnesium rod and the steel pipe are connected by a wire, then a voltaic cell is setup where electrons flow from the magnesium rod towards the steel pipe. The excess electrons at the pipe protect it from corrosion and are used to convert oxygen gas, O2, and water, H2O, into hydroxide ions, -OH (half reaction: O2 + H2O + 4e- → 4OH-). The reaction that occurs at the magnesium is shown in ethanol diagram above as a half reaction (Mg → Mg2+ + 2e-).   When the magnesium protects the steel pipe this way, is it undergoing oxidation or reduction?  

Read Details

IMG_7304.jpegThe look of the barber pole is linked to bloodl…

IMG_7304.jpegThe look of the barber pole is linked to bloodletting. So what do the white and red represent, and what does the pole represent?[BLANK-1]

Read Details

Obesity is defined as a BMI equal to or above:

Obesity is defined as a BMI equal to or above:

Read Details

Whenever possible, goals and objectives should be _____.

Whenever possible, goals and objectives should be _____.

Read Details

Bob faces the problem of motivation to quit smoking. This li…

Bob faces the problem of motivation to quit smoking. This likely means that he does not _____-

Read Details

Posts pagination

Newer posts 1 2 3 4 … 83,310 Older posts

GradePack

  • Privacy Policy
  • Terms of Service
Top