acquires a positive charge
electrically (neutral)
Answer:
one generation to the next via DNA,
Explanation:
Heritable traits are known to be passed from one generation to the next via DNA, a molecule that encodes genetic information. ... Organisms inherit genetic material from their parents in the form of homologous chromosomes, containing a unique combination of DNA sequences that code for genes.
Answer:
a and d
Explanation: bc if c is wrong and b is to trust me
Answer:
Fe₂O₃
Explanation:
When Fe is burned it can form iron (II) oxide or iron (III) oxide. The reactions are:
a) Fe + 1/2 O₂ → FeO
b) 4 Fe + 3 O₂ → 2 Fe₂O₃
In the reaction "a", the mass ratio of FeO to Fe is 71.84 g FeO:55.85 g Fe =
1.29 g FeO: 1 g Fe
In the reaction "b", the mass ratio of Fe₂O₃ to Fe is 319.3 g Fe₂O₃: 223.4g Fe =
1.43 g Fe₂O₃ : 1 g Fe
According to the experimental data, the mass ratio of the product to Fe is 165.5g compound: 115.0 g Fe =
1.43 g compound: 1 g Fe
Since this ratio is equal to that of reaction "b", the empirical formula of the solid is Fe₂O₃.