Answer:
Ba(OH)₂ + 2 HBr ⇒ BaBr₂ + 2 H₂O
Explanation:
We have the products of a reaction and we have to predict the reactants. Since the products are binary salt and water, this must be a neutralization reaction. In neutralizations, acids react with bases. The acid that gives place to Br⁻ is HBr, while the base the gives place to Ba²⁺ is Ba(OH)₂. The balanced chemical equation is:
Ba(OH)₂ + 2 HBr ⇒ BaBr₂ + 2 H₂O
1. Mitosis is a process where a single cell divides into two identical daughter cells (cell division).
2. Mitosis is important because it plays an important part in the development of embryos, and it is important for the growth and developemet of our body as well.
3. The four phases of mitosis are: Prophase, metaphase, anaphase, and telophase.
4. Two gap phases (G1 and G2); an S (for synthesis) phase, in which the genetic material is duplicated.
5. During S phase all of the chromosomes are replicated.
I hope that helps! c:
Answer:
a party mix:-) it would be a jar of cashews, peanuts, almonds, ettc.
Explanation:
if you can separate the nuts, it is heterogenous
0.912 mol Na2CO3 × 105.9888g Na2CO3/ 1 mol Na2CO3 = 96.66 grams
Answer:
The emission spectrum lines are the changes in the quantum energy levels of the single electron in the Hydrogen atom.
Explanation:
Electrons move around the hydrogen atom in electron waves patterns. These waves occur in distinct quantum energy levels.
The change from one quantum energy level to another energy level has a definite energy level change. There is a wave length associated with each change in energy levels. These wave lengths have a color associated with them.
Low energy level changes have long wave lengths associated with them giving red and orange colors.
High energy level changes have short wave lengths associated with them giving blue and violet colors.
Note each atom has a unique emission spectrum associated with the energy levels and electron structure of the atom. Helium was first discovered by looking at its emission spectrum as seen in the sun.
Explanation:
