am student i love chemistry My question is what is chemistry

description of an element at the particulate level

what is change in science

The Scientific Method Group of answer choices isn't used much in modern chemistry. is a strict set of rules and procedures that lead to inarguable fact is based on continued observation and experiment is just a theory

Canvas Question 46 A The date on a penny recovered from the floor of Ruggles MBTA stop is unreadable. The following data for this penny are then collected. Measurement Value Density of Pure Copper Density of Pure Zinc Diameter of Penny Thickness of Penny Mass of Penny 8.96 g/cm³ 7.140 g/cm³ 19.05 mm 1.52 mm 3.878 g Given the facts below, which can you conclude about this penny? Minting Date of Penny Pre-1982 Composition by Mass 100% Cu 1982-Present 2.5% Cu, 97.5% Zn O the penny was minted before 1982 and contains 3.675 x 1022 atoms Cu O the penny was minted after 1982 and contains 3.483 x 1022 atoms Cu O the penny was minted before 1982 and contains 9.1187 x 1020 atoms Cu O the penny was minted after 1982 and contains 8.930 x 1020 atoms Cu $ 4 % M 5 MacBook Pro T A 6 & Y 7 1 8 U J 9 1 O O K 2

As ice is heated, the two states of matter that are observed immediately after are and which sit on a plateau.

how do you define chemistry

In the reaction Cl 2(g)+3F2(g) ---> 2 ClF3(g), if the average rate of disappearance of F2 is -0.250 M/s over the first 6.00 s, how much ClF3 will form during this time? a. 0.750 M b. 1.00 M  c. 1.50 M d. 2.00 M e. 3.00 M