Constructive interference occurs when the compression of one wave meets

up with the compression of a second wave.

A. True

B. False

the number below and to the right of an element in a chemical formula. It represents the number of atoms of that element in chemical compound or molecule.

What are the two types of Earth's crust

What is your moms name?

A 7.5 gram sample of zinc (specific heat = 0.390 J/g°C) is heated and then placed in a calorimeter containing 65.0 grams of water. The temperature of water increases from 20.00°C to 25.00°C. What was the initial temperature of the zinc?

Consider this reaction: HCO3 - + H2S → H2CO3 + HS - Which is the Bronsted-Lowry base? H2S HCO3 - HS - H2CO3

Which item takes the most amount of water to produce

1. Which of the following two ingredients can combine to make a compound? a. Salt and water b. Hydrogen and oxygen c. Eggs and butter d. Sugar and water 2.

What are two ways climate can influence weathering?

A light has a wavelength of 4.10*10^12m. What is the Frequency?

If a compound has a molar más of 180g/mol and it's empirical formula is CH^2O, what is it's molecular formula?