The turtle ultrasound sign or hamburger ultrasound sign indicates?

Calculate the mass (in g) of the precipitate formed when 2.72 L of 0.12 M Ba(OH)2 is mixed with 2.68 L of 0.09 M Na2SO4.    

Which of the following is considered a strong electrolyte.

A reaction occurs in a closed container that releases 950 J of heat into the surroundings. As the reaction proceeds, the product falls out as a solid and causes the container to contract. This results in the surroundings performing 220 J of work on the system. What is the change in internal energy (in kJ)?

Calculate the standard reaction enthalpy of the combustion of C2H4, given the formation enthalpies and reaction shown below. C2H4(g) + O2(g)

The ultrasound images demonstrate ?

What volume (in mL) of 0.167 M HCl is required to neutralize 3.46 g Mg(OH)2?  

Choose the phase that represents being dissolved in water?  

A family wants to purchase a home and needs a mortgage (a fully amortized loan) of $500,000 for 30 years.  The bank quotes an annual interest rate of 8.5%.  What will the monthly payment be?

How many mL of a 0.2 M NaOH solution are required to completely neutralize 34.2 mL of a 0.2 M HCl solution?