Scientists can use chemicals to clean toxins from the soil. What does this show about chemicals? A. All chemicals are harmful to the environment.
B. Scientists cannot predict the effect of chemicals on the environment.
C. Chemicals can be used to help the environment.
D. Scientists have to fix the problems they cause by adding chemicals to the environment .

To save time, you can approximate the initial mass of the solid to the nearest ±1 g. for example, if you are asked to add 14.3 g of copper, add between 13 g and 15 g. which of the following sets include two samples with an equal density? which all that apply below 15.4 g gold and 18.7 g silver 15.2 g copper and 50.0 g copper 20.2 g silver and 20.2 g copper 11.2 g gold and 14.9 g gold

Used the balanced equation 2h2+ o2 - -> 2h2o. if you have 7.2 grams of o2 , how many grams of h2o can you produce ?

Which element forms an ionic bond with flourine? 1) fluorine 2) carbon 3) potassium 4) oxygen