From Questions to Solutions

Help it’s for a test!!!!!!!!!!!How many moles are in 2.16 x 1023 atoms of magnesium? A. 35.9 moles B. .359 moles C. 7.18 moles D. 0.359 moles E. 0.90 moles

You custom make trail mix that is 54.5% peanuts, 21.3% raisins, and 24.2% chocolate chips. If the weight of the trail mix is 172 grams, how much do the peanuts

What is the approximate circumference of a circle that has a diameter of 25 yards? Round your answer to one decimal place. Use 3.14 for [tex]\pi[/tex]. A. 75 yd B.

Seven-eighths of a sample of hydrogen-3 will have become a stable isotope after 36.9 years. What is the half-life of hydrogen-3? A. 12.3 years B. 18.5 years C. 32.3 years

The pressure system begins at 99.7 kPa. The volume of the gas is 150 mL. What would be the final volume in the system if the pressure drops to 99.8

Pia, Lily, and Eric each have the same length of ribbon. Pia cuts her ribbon into 10 equal pieces and uses 7 of them on a skirt. Lily cuts her

What is the energy needed to melt 20 g of sodium (Na) from 200.0 °C to 75.0 °C? The melting point of sodium is 97.8 °C, and the boiling point

In what year did the Kingston Trio win a Grammy Award in the Country Music category (Folk didn't exist as a category yet) for their hit song "Tom Dooley"? a)

You are working with a male client who weighs 330 pounds and is 74 inches tall. Which of the following is his body mass index (BMI)? 1) 37.8 2) 39.4

Aisha divides 15 meters of ribbon into 2 equal pieces. What is the length of each piece of ribbon?

(a) How many minutes does it take to form 10.0 L of [tex]$O_2$[/tex] measured at 99.8 kPa and 28°C from water if a current of 1.3 A passes through the

Select the correct answer. Points [tex]$A$[/tex] and [tex]$B$[/tex] lie on a circle centered at point [tex]$O$[/tex]. If [tex]$OA = 5$[/tex] and [tex]$\frac{\text{length of } \widehat{AB}}{\text{circumference}} = \frac{1}{4}$[/tex], what is the

The AUC 0-24 is 39.3 (µg·hr)/L. Determine the total amount of rolipram absorbed from the patch during the 24-hour application.

The normal boiling point of ethanol is 78.3°C, and its molar enthalpy of vaporization is 39.3 kJ/mol. What is the vapor pressure at 30.0°C? A. 43.6 kPa B. 37.2 kPa

A 27-inch long ribbon was cut into 4 equal lengths. How long was each piece of ribbon?