The specific heat capacity of methane gas is 2.20 J/g°C. How many joules of heat are needed to raise the temperature of 5.00 g of methane from 22.0°C to 57.0°C?

a-79.5 J

b-385J

c-869 J

d-0.0126 J

You want to make 100 mL of a 2.5 M stock solution of calcium chloride (molecular weight 110.98 g/mol). How many grams of calcium chloride do you need to weigh out in order to make this solution? Round your answer to the nearest tenth of a gram.

Based on the number of electrons, can you determine the identity of x?

The movement of individuals in an area

Which of the following could increase the rate of chemical weathering of a rock? Question 5 options: moving it to a location with few plants and animals moving it to a drier climate increasing its total surface area moving it to a colder climate

How does the Doppler effect related to the universal expanding?

Water is a colorless and odorless liquid. It can exist in solid, liquid, and gas states. It boils at 100 degrees C and melts at 0 degrees C. Which option best describes this information? A. These are the physical properties of water. B.

What can happen to a supersaturated silution?

What is the source for georthermal energy

What senses will we use only with permission from a teacher or adult in Physical Science Labs?

Where is chemistry used?