Erica is working in the lab. She wants to remove the fine dust particles suspended in a sample of oli. What method is she most likely to use?

Carbon-14 forms nitrogen-14 by a. alpha decay. b. beta decay. c. gamma decay. d. none of the above

What is the relationship between groundwater and surface water? A Surface water percolates through the soil to form groundwater. B There is no relationship between surface and groundwater; they form independently.

An average tornado has a pressure of around 630 torr. What is this equivalent to in mmHg, atm and kPa? Show your work.

Which of the following is an example of a colloid Muddy water Mayonnaise Orange juice Cake mix

A sample of argon gas occupies 100 L at 720. mmHg and 20°C. What will be the temperature of the argon gas at 360. mm Hg and 2.14 L. assuming the number of moles of gas remained constant?

Phosphorus forms a number of oxohalides, x3po, in which x may be a f, cl, or br atom. the most common of these, phosphoryl chloride, is obtained as follows:

Which statement is true about the speed of light waves in a medium? a. Depends on the temperature of the light wave b. Decreases with a decrease in density of medium c. Decreases with an increase in density of medium d.

What's a certain indicator that a molecule is polar? the molecule has a nonpolar covalent bond and the dipole is cancelled due to symmetrical arrangement of atoms the molecule has a polar covalent bond and the dipole is cancelled due to symmetrical

In the synthesis of barium carbonate from an alkali metal carbonate (M2CO3 where M is one of the alkali metals) a student generated 3.7 g of barium carbonate from 2.0 g of their alkali metal carbonate.

Give the state of matter that water is in as it moves through earths system