Q: Q: Because the nuclei of each h atom contain protons, the electrons in the bond are attracted to the nuclei (opposite charges attract). but because the two atoms involved in the covalent bond are both h atoms, each nucleus attracts the electrons by the same amount. thus the electron pair is equally shared by these? Choices: - four atoms - one atom - nine atoms - two atoms A:
A: two atoms

Q: Q: What keeps the moon orbiting earth? Choices: - Coriolis effect - the Sun - axial tilt - gravity A:
A: gravity

Q: Q: All matter is composed of tiny indivisible particles called atoms. all atoms of an element are identical in mass and this? Choices: - acid properties - liquid properties - electrical properties - chemical properties A:
A: chemical properties

Q: Q: What is needed by all known forms of life? Choices: - nitrogen - warmth - air - water A:
A: water