When electricity passes through a gas it may become hot enough to give off light how could scientist determine the element from which gas is made

Which type of element has an electron configuration of 1s22s22p63s23p64s1? Question 1 options: alkali metal alkaline earth metal noble gas halogen

An atom with 39 protons and a mass number of 89 what is the number of neutrons

Ammonia can also be synthesized by this reaction: 3h2 (g) + n2 (g) → 2nh3 (g) what maximum amount of ammonia in grams can be synthesized from 25.2 g of n2 and 8.42 g of h2? express your answer in grams to one decimal place.

The accompanying figure shows data from an experiment in which researchers measure how far dynein traveled in the presence and absence of dynactin.

A librarian is interested in the numbers of books that visitors check out from the library. She examines the checkout records of 250 randomly selected adult visitors. Identify the population and sample for this situation.

Draw the curved arrow mechanism for the conversion of aniline into benzenediazonium ion, and draw the final product that forms after the benzenediazonium ion is treated with

Sodium chloride is stirred into water to form a solution. in this case, what are sodium chloride and the water?

What can form as a result of a chemical reaction?

A solution of orange juice that weighs 500 g contains liquid juice and solid pulp. All of the pulp is removed from the juice. The pulp is found to weigh 50 g. How much would the remaining liquid juice weigh? A. 50 g B. 250 g C. 450 g D. 500 g

Assume 3 molecules of Fe react according to the following equation. 3Fe + 4H2O Fe3O4 + 4H2 How many molecules of H2 are produced? How many water molecules are required? What is the mole ratio of Fe to H2O?