Answer:
The number of molecules is 1.4140*10^24 molecules
Explanation:
To know the number of molecules, we need to determine how many moles of water we have, water has molar mass of 18.015g/mol
This means that one mole of water molecules has a mass of 18.015g.
42.3g * 1 mole H2O/18.015g
= 2.3480 moles H2O
We are using avogadros number to find the number of molecules of water
2.3480 H2O * 6.022*10^ 23moles/ 1mole of H2O
That's 2.3480 multiplied by 6.022*10^23 divided by 1 mole of H2O
Number of molecules = 1.4140 *10^24 molecules
Carbon monoxide (CO) is the name
Bases turns cabbage juice yellow or green is not a property of bases.
<u>Explanation:</u>
As per the property of the bases, the correct statements are:
- The taste of the bases are bitter.
- Solutions of bases are slippery in nature
- Bases reacts with the metals to form hydrogen gas and a salt.
- For example, sodium hydroxide reacts with zinc metal to form sodium zincate salt and hydrogen gas.
Wrong statement:
- It turns cabbage juice yellow or green, whereas it turns the cabbage juice blue or green and acids turns cabbage juice red or pink.
Answer:
The yeast respired aerobically
Explanation:
The expectation here was that the yeast was going to put the sugar in the grape juice through fermentation, which is an anaerobic process that results in alcohol as one of the products. However since no alcohol was found in this particular example, it is fair to assume that maybe there was oxygen in teh muxture and therefore the yeast respired aerobically, producing water and carbon dioxide as products.
Answer:
4chlorine;12thousand ;17zinc;2grams;three 8carbon;15aluminium
