Cross out the spectator ions in the reaction of the aqueous solutions sodium carbonate and calcium chloride. The reaction forms an aqueous solution of
sodium chloride and a precipitate calcium carbonate.
2Na+ (aq) + Ca2+(aq) + 2C1-(aq) +CO32 (aq) - CaCO3(s) + 2Na+ (aq) + 2C1-(aq)

Microtubular fibers that assist in the movement of chromosomes during nuclear division in conjunction with proteins, makes up the small and large organelle pieces that assemble prior to translation three-base nucleotide sequence that can complementarily pair with the functional transcript, allowing a particular material to be brought to a ribosome particular time in the cell cycle when the cell’s systems determine if the cellular conditions are appropriate to continue through the cycle time in the cell’s cycle when proteins are made and organelles are duplicated enzyme that allows proper nucleotide bonding during transcription specific dna sequence which will initiate gene transcription division of the cell’s cytoplasm specific bond that forms between two amino acids when a carboxyl group binds to a amino group three-base sequence that does not code for a particular amino acid a paired organelle which facilitates the formation of movement microtubules time in the cell’s cycle when the microtubular structures exert an equal pressure on the cell’s genetic material

Brainliesttt me asap! the below reaction can be categorized as more than one type of reaction. which reactions are these, and what are the types of reactions?

Calculate the number of kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.