The temperature of a 10g sample of iron was raised by 25.4ᵒC with the addition of 114 J of heat. What is the specific heat of iron?

The two naturally occurring isotopes of chlorine are 35cl (34.969 amu, 75.77%) and 37cl (36.966 amu, 24.23%). the two naturally occurring isotopes of bromine are 79br (78.918 rm amu, 50.69%) and 81br (80.916 amu, 49.31%). chlorine and bromine combine to form bromine monochloride, brcl. 1. how many peaks will be present in a mass spectrum for brcl? the four combinations of molecule possible given these four isotopes are: 81br37cl, 81br35cl, 79br37cl, and 79br35cl. 2. what are the masses of the four different brcl molecules? express the masses using six significant figures, in decreasing numeric order (highest to lowest), separated by commas.

How does electronegativity changes as we move from left to right across a period

Question 1 how do an ionic bond and a covalent bond differ? an ionic bond is an attraction between oppositely charged ions. a covalent bond is a sharing of electrons between atoms. a covalent bond is an attraction between oppositely charged ions. an ionic bond is a sharing of electrons between atoms. there is no difference. both an ionic bond and a covalent bond share electrons. there is no difference. both an ionic bond and a covalent bond are attractions between oppositely charged ions. question 2 what is the definition of a covalent bond? a bond between two positive ions a bond between two negative ions a bond between a positive and a negative ion a bond between two atoms question 3 what is a bond called that shares electrons between two neutral atoms? covalent bond ionic bond metallic bond polar bond question 4 water (h2o) is composed of the same elements as carbon monoxide (co). how do their properties compare? they have different properties because the arrangement of atoms is different. they have the same properties because they have the same atoms. they have different properties because they have different atoms. they have the same properties because they have the same arrangement of atoms. question 5 what is the definition of a chemical bond? a mutual attraction between the nuclei and electrons in two different atoms a mutual attraction between the nuclei and electrons in a single atom a mutual repulsion between the nuclei and electrons in two different atoms a mutual repulsion between the nuclei and electrons in a single atom