Which one is a true statement about exothermic reactions?
a. the reactions have more he...
Which one is a true statement about exothermic reactions?
a. the reactions have more heat energy than products.
b. more heat is given off than is put into the reaction.
c. energy from an outside source is continuously being added.
d. the reaction container always feels cold.
Answers: 2
Chemistry, 22.06.2019 03:00, Dkhaurithompson
Zoe is investigating the composition of substance a, an unknown substance. using chemical processes, she analyzes substance a and determines it is composed of sodium, oxygen, and hydrogen atoms in a ratio of 1 : 1 : 1. what is substance a? a. a compound b. an element c. a heterogeneous mixture d. a homogeneous mixture
Answers: 1
Chemistry, 22.06.2019 09:00, wkalpakchi
Given the following reaction: c3h8+5o2=3co2+4h20 how many grams of co2 will be produced 7 g of c3h8 and 98 g of o2
Answers: 1
Chemistry, 22.06.2019 14:10, cameronbeaugh
13. a covalent bond between two atoms is likely to be polar if: a. one of the atoms is much more electronegative than the other. b. the two atoms are equally electronegative. c. the two atoms are of the same element. d. the bond is part of a tetrahedrally shaped molecule. e. one atom is an anion.
Answers: 1
English, 15.12.2019 15:31
Mathematics, 15.12.2019 15:31
Mathematics, 15.12.2019 15:31
Mathematics, 15.12.2019 15:31