Why is it important that a chemical equation is balanced?

A wooden cylinder 30.0 cm high floats vertically in a tub of water (density = 1:00g/cm3). The Top of the cylinder is 13.5cm above the surface of the liquid. What is the density of the wood?

How many moles of iridium are in 26.4 g of iridium? a. 1 mol b. 1.37 10-1 mol c. 5.06 103 mol d. 7.29 mol

What kind of change occurs when a mixture is separated into its components

All are true about how does gravity aid erosion except? Gravity causes rocks to fall and break apart. Gravity causes rocks to get larger then breaks it apart. Gravity pulls rainwater down eroding rocks.

When a piece of sodium carbonate reacts with dilute HCl, a gas X is produced. When gas X is passed through lime water then the solution turns milky and a white precipitate Y is formed a. Write the chemical formula of X, Y and (3) b.

What is the correct orbital diagram for carbon

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What are the properties of metal, nonmetal, and mellaloids

The big bang is through to have started by an?

What is the word equation for KNO3 = KNO2 + O2