In a nuclear reaction, which statement is true? Ob
Mass is neither created nor destroyed.
Some mass is converted into energy.
Atoms gain, lose or share electrons to form chemical bonds.
There is a weak electrostatic attraction holding electrons and nuclei together.
d

The continuous release of nuclear energy caused when one fission reaction triggered more nuclear reactions is a

Which of the following statements about hybrid orbitals is or are true? choose all that apply. choose all that apply. under sp2 hybridization, the large lobes point to the vertices of an equilateral triangle. after an atom undergoes sp hybridization there is one unhybridized p orbital on the atom. the angle between the large lobes of sp3 hybrids is 109.5∘

Two metal blocks that have slightly different temperatures are placed next to one another. after five minutes, they both have lower but equal temperatures. according to the law of conservation of energy, what  most likelyhappened? energy was created inside the blocks.energy was destroyed inside the blocks.energy was absorbed into the blocks from outside the system.energy was transferred from the warmer block to the cooler block.