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A chunk of lead at 91.6°C was added to 200.0 g of water at 15.5°C. The specific heat of lead is 0.129 J/g°C, and the specific heat of water is 4.18 J/g°C. When the temperature stabilized, the temperature of the mixture was 17.9°C. Assuming no heat was lost to the surroundings, what was the mass of lead added?

Choose the element with the highest ionization energy.

B2  (Show your work on your Free Response Paper for full credit) Using the following thermochemical data: 2Cr(s) + 6HF(g) –> 2CrF3(s) + 3H2(g) ∆H° = –691.4 kJ/mol 2Cr(s) + 6HCl(g) –> 2CrCl3(s) + 3H2(g) ∆H° = –559.2 kJ/mol calculate ∆H° for the following reaction:CrF3(s) + 3HCl(g) –> CrCl3(s) + 3HF(g)

To find mentions of their brand across social media platforms, digital marketers can make use of a practice known as:

“Owned” and “Unowned” media should all be listed on one page of the audit spreadsheet.

Which of the following are advantages of a corporation? Choose all that apply.

A 78-year-old patient recovering from a stroke is referred to home health PT. The patient has speech and balance difficulties but can ambulate with minimal assistance. The family is eager for the to transition to outpatient therapy. What educational approach would be most effective for this patient? 

According to the lecture, which of the following is the first step in conducting a social media audit?

Twitter users can affix one tweet to the top of their profile. This tweet is known as a:

A(n) _________ is a list of words along with an evaluation of their polarity.