Which is the formula mass of Na₂SO₄? *

1. 119 amu

2. 125 amu

3. 142 amu

4. 174 amu

Gravitational force is stronger between objects with less mass. True or false?

The organic compound represented by the condensed structural formula CH3CH2CH2CHO is classified as an (1) alcohol (3) ester (2) aldehyde (4) ether

Classify the following atom as excited, ground state, or not possible. 1s^2 2s^2 2p^6 3p^1

Why is a mechanism needed to remove carbon dioxide gas from your cells?

There are many different rules for naming compounds. How from the chemical formula alone can you tell what set of rules you should use?

According to Table I, which equation represents a change resulting in the greatest quantity of energy released? 1. 2C (s) + 2H2 (g) - > C2H4 (g) 2. 2C (s) + 3H2 (g) - > C2H6 (g) 3. N2 (g) + 3H2 (g) - >2NH3 (g) 4. N2 (g) + O2 (g) - > 2NO (g)

Calculate the number of liters in 3.25 g of ammonia

Adding drops of food coloring to a beaker of water more organized system?

Some chemical hazards are physical and some are related to the potential health effects of exposure. Click only one box for each response Toxicity Carcinogenic Flames Inhalation hazard Flying objects

Which would be best categorized as heat transfer by convection? A) Wearing a white shirt to stay cool on a summer day.