What are two reasons scientists might use a model to study what happens on the atomic level when something explodes?
A. The process cannot be understood without a model.
B. The molecules in the reaction are too small to see.
O C. Explosions occur too slowly to study easily.
D. The process is very dangerous to study.

In what way do investigations build scientific knowledge? the results of investigations lead to questions that cannot be tested. they reflect the opinions and social values of scientists, ensuring valid information. the results of investigations lead to new questions, which lead to new investigations. they are not influenced by the research of earlier scientists, so they are able to address gaps in understanding. i

The polarity of an oxygen-hydrogen bond is higher than the polarity of a nitrogen-hydrogen bond, allowing amines to be more soluble than alcohols.

Calculate the number of grams of sodium in 3.00 g of each sodium-containing food additive.