1.specific heat capacity. A. Heat on concreate.
the specific heat capacity of concrete is 880 j/g °C
calculate the heat added to 3g of concrete if the temperature increased by 0.64 °C

use the equation q=mc(triangle)T

// Unit Test 4!! I need help asap​

Abullet found at a crime scene may be used as evidence in a trial if the percentage of metals match to the composition of metals in a bullet from the suspect's ammunition. a forensic scientist's analysis of the bullet shows that it contains 11.9 g of lead, 0.5 g of tin, and 0.8 b of antimony. what is the percentage of lead metal in the bullet? express your answers to the one's place.

An atom of sodium-23 (atomic number = 11) has a positive charge of +1. give this information, how many electrons does it have? how many proteins and neutrons does this atom have

Aperfume bottle is dropped in the corner of a room. the odor of the perfume can be detected on the other side of the room. which statement best describes this observation?