Convert the measurement 345.82 Kelvin to degrees Celsius.

How do I seperate a mixture of iron filings, salt, sand, and wood chips?

Reaction has a theoretical yield of 56.9 g. when the reaction is carried out, 36.6 g of the product is obtained.

Balance the following redox equation using the oxidation-number-change method. Show your work, describing each step. HNO3 + H2S - -> S + NO + H2O

Since climte is hard to study on a global scale scientists use computer models to make climate predctions? TRUE OR FALSE

To ensure that the air in the shuttle remains free of excess CO2, engineers test the air-purification system. They combine 1.000 * 103 g LiOH with 8.80 * 102 g CO2. The reaction produces 3.25 * 102 g H2O

Two skydivers jump out of a plane. As the skydivers are in free fall, the potential energy they possessed at the airplane door Is being converted to kinetic energy True False

What part of an atom has no relative mass

A scientist studies the DNA of three different species. The DNA from species A is more similar to DNA from species B than DNA from species C. Which species are probably the most closely related? Explain your answer.

Gamma rays are waves of energy that have no charge. true false

Describe what a polar covalent bond is and name a common compound that has a polar covalent bond holding it together