What is the formula of hydrochloric acid

You are on a field trip to a nearby lake for biology class and want to perform a quick analysis of the water's approximate pH level. Which pH measurement system would you use and why?

What does chemical weathering do?

How do electrons typically fill energy levels?

the water in a tea pot is heated on a stove top. The temperature of the water increases. Is this an endothermic or exothermic process?

What is an inference? A prediction of test results before an experiment A retest of experimental results to make them reliable Background research completed with questioning A conclusion derived from evidence and logical reasoning

In an electron dot diagram of ethylene (C2H4), how many double bonds are present? A. none B. one C. two D. three

Given the following information, identify which of these are the same element. Be sure to explain your answer. Element 1: 6 protons, 6 neutrons, 6 electrons Element 2: 7 protons, 6 neutrons, 7 electrons Element 3: 6 protons, 7 neutrons, 7 electrons

What will happen to water in a cup if the cup is placed inside a sealed bag and left in a warm area?

What are two forms of friction that oppose the motion of a moving car

If a molecule contains two carbon atoms and four hydrogen atoms, what can you conclude about the bond between the carbon atoms? ... ?