Answer:
Na+Cl- + Ag+no3- ---> Na+No3- + Ag+Cl-
A spectator ion is an ion that exists as a reactant and a product in a chemical equation
Explanation:
When a solution of sodium hydroxide, NaOH, is mixed with hydrochloric acid, HCl, the compounds dissociate into the ions Na+, OH-, H+ and Cl-. The hydrogen and hydroxide ions react to form water, but the sodium and chlorine ions stay in solution unchanged.
The correct answer is option B, that is, Animalia.
The animals refer to the multicellular eukaryotic species, which forms the biological kingdom known as Animalia. The majority of the animals breathe oxygen, consume organic substances, and possess the tendency to move, has the tendency to reproduce, and develop from a hollow sphere of cells, the blastula at the time of embryonic development. In comparison to Kingdom Plantae, the cells in animals do not exhibit cell wall. Thus, on the basis of the characteristics, the newly discovered species must be categorized under Kingdom Animalia.
What problem? I can’t see anything
1) - it can become a theory if the hypothesis is <span>tested extensively and competing hypotheses are eliminated - other options are not enough
2) This is a hypothesis. A theory is basically almost an established truth, which can still be changed with new data, but which as far as we know is true.</span>
Volume = 3 cm × 3cm × 3cm
= 27 cm ³
Mass = 213 g
Density =
= <span>
</span>
= 7.89 g / cm³