The following data table indicates the number of hours spent on school work last week. If 4 hours was spent on mathematics, how many hours were spent on all homework assignments? School Work Hours (%) Science 43.75 Mathematics 25.00 History 12.50 Reading 12.50 Art 6.25

Q: Titanium has a density of 4.55 g/mL. A piece of titanium has a volume of 250.0 mL. What mass, in…

A: Given  Density = 4.55 g/ml Volume = 250 ml

Q: A year ago I had a barbeque on March 1st.  I invited 16 friends to join me.  I planned to serve each…

A: Given that, Total friends =16 It is planned to serve each 1 hot dog, 2 hamburgers and 3 cans of soda

Q: (5.0 × 104) × (3.0 × 106) =  a. 1.5 x 10^9 b. 1.5 x 10^10 c. 1.5 x 10^11 d. 1.5 x 10^12

A: The calculation given is, => (5.0 × 104 ) × (3.0 × 106)

Q: The lowest temperature recorded in a particular city during the past year was –16.53° C. What was…

A: Temperature in Kelvin = temperature in degree Celsius + 273.15

Q: Find the weighted average of these values. Value Weight 5.00 75.0% 6.00 15.0% 7.00 10.0%

A:

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.