Read the following information from a material safety data sheet (msds) about the chemical hydrochloric acid (hcl). “skin contact: in case of contact, immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. wash clothing before reuse. thoroughly clean shoes before reuse. get medical attention immediately.” based on this information, which is the most important thing to do right away if a student spills hcl on his shirt? a. remove the shirt and rinse the skin with water in case the hcl soaked through. b. remove the shirt, and find a sink to rinse it in. c. get from a classmate immediately. d. call 911 to get medical attention immediately.

A.Remove the shirt and rinse the skin with water in case the HCl soaked through.  

Explanation:

As per given information, direct contact of HCl with skin should be avoided to prevent any injury to the skin.  

If there is an accidental spill of HCl on the shirt of any student, the student should immediately remove the shirt to prevent HCl from damaging the skin. This should be followed by cleaning the skin with water to remove HCl from the skin if any.  

it has to be understood that the sea water contains a huge amount of sodium and chlorine ions and if they enter the cell of the atlantic cod fish, the cell will shrivel and the fish will die. to avoid such a condition, the fish uses active transport for the purpose of removing the ions against the gradient.

explanation:

the atlantic cod is not a maritime osmoconformer. its native application of salts is less than that of the seawater it lives in. it is continually falling water from the gills to the ocean via osmosis.

countering that, the fish is going to be swallowing seawater. but since its internal collection of salts is lower than seawater, the fish will want to go free of excess salt, and since that's going upon a gradient, then active transport, requiring energy, must be used to pump out the salt. much marine fish use the organs to filter out the salt and these fish discharge very straight urine.

thats not a question