What is the concentration of H + ions at a pH = 2

Tell me awesome facts about light.

Use the diagram to answer the question. Number of Chirps per Minute Cricket 15 ° C 20 ° C 25 ° C 1 91 135 180 2 80 124 169 3 89 130 176 4 78 125 158 5 77 121 157 Average 83 127 168 Which statement indicates a reasonable conclusion based on the data

If a photon has a frequency of 1.15 * 1015 hertz, what is the energy of the photon? Given: Planck's constant is 6.63 * 10-34 joule·seconds.

What is the correct definition of conditioning? gentle exercises to get heart muscles ready for activity O gentle exercises that let the body adjust to ending a workout O training to get into shape for a sport excessive loss of water

2. Fill in the blanks with appropriate words. a. The force which acts towards the centre is called ... force.

A space probe produces a radio signal pulse. If the pulse reaches Earth 12.3 seconds after it is emitted by the probe, what is the distance from the probe to Earth?

Do substances that heat up quickly have high or low specific heat capacity?

A substance has a specific heat of 0.870 J/g°C. It requires 2,000.0 joules to increase the temperature of 10.0 grams of the substance from its original temperature to its final temperature. By how many degrees did the substance increase? A 87.

How many earth years does it take mars to orbit the sun

Which represents a system that is almost completely closed?