Answer: option <span>B. The nucleus contains protons and neutrons and is orbited by electrons.
This is the planetary model, which is so known nowadays, but it is not correct. The quantum model is based in orbitals (not orbits), which are regions around the nucleus where are the electrons, but they are not circling around the nucleus. </span>
Answer:
0.5
Explanation: (3) Factors affecting transport number (i) Temperature: A rise in temperature tends to bring the transport number of cation and anion more closely to 0.5
Im thinkings its c because the two central ones are carbon, the three on the far left are hydrogens the one with double bonds C=O and the other one is O and the last one is H
<span>Hi there,
</span><span>Here is a 2 step way to "Convert grams to moles"
</span><span>Step 1: Find the
Molecular Weight. We already know the number of grams, so unless it is
already given, we need to find the molecular weight of the chemical
substance.
</span><span><span>Step 2: Divide the Amount of the Compound in Grams by the Molecular Weight. We can now convert 100g of NaOH to moles.
</span></span>Hope this helps.
<span><span /></span>
Answer:
A reactant is a substance that is present at the start of a chemical reaction. The substance(s) to the right of the arrow are called products . A product is a substance that is present at the end of a chemical reaction.
Explanation:
