A student is using the following key to model the chemical equation provided.

How many blue beads will the student need in order to model each side of the equation?
A. One for the products and one for the reactants
B. Two for the products and two for the reactants
C. Two for the products and one for the reactants
D. One for the products and two for the reactants

Sarah wants to know where in her garden chamomile would grow the best. she thinks chamomile will grow best in the corner of the garden that gets the most sunlight. to test her hypothesis, she decides to plant several groups of chamomile in her garden as an experiment. which of the following variables will sarah need to measure to know which group of plants grew best? a. the location of the plants b. the type of plants c. the height of the plants d. the amount of water she gives the plants

The chemical equation below shows the reaction of sodium (na) and chlorine (cl) to form sodium chloride (nacl). 2na + cl2 → 2nacl in this equation, which of the following is a reactant? i. sodium ii. chlorine iii. sodium chloride

What are the coefficients that will balance the skeleton equation below? n2 + h2 → nh3