A gas has a volume of 15 L, a temperature of 300 K, and an unknown initial pressure. Then, the
gas expands to 30 L, remains at 300 K, and has a
pressure of 300 kPa. What was the initial pressure
of the gas?
a. 150 kPa
b. 600 kPa
330 kPa
d. 570 kPa
C.

Forces that are equal in strength but opposite in direction are a.) balanced b.) unbalanced c.) always result in motion d.) do not exist

In tomato plants, mendel found that the allele for smooth seeds (s) is dominant, while the allele for wrinkled seeds (s) is recessive. which of these punnett squares shows crosses between two plants heterozygous for smooth seeds? i need this to be answered as soon as ! sry the picture is bad quality

Explain how light energy is turned into chemical energy? ! due tomorrow!