Sorry I don't like science
Answer:
<em>Please note that the question is incorrectly formatted. It should read:</em>
“How many moles of Na 2 CO 3 are in 10.0 mL of a 2.0 M solution?” (Note the subscripts. Without them, the question makes no sense.)
When a solution is called 2.0 M (molar), it has 2 moles of compound dissolved in 1 liter of water. So how many moles would there be in 10 ml?
(1L =) 1000 ml = 2 moles
10 ml = x moles.
Cross-multiply: x = 10*2/1000 = 0.02 moles.
(Or alternatively, 10 ml is 100 times less than 1 L so you also have 100 times less moles.)
Answer:
Explanation:
The difference between bond pair & lone pair is that a bond pair is composed of two electrons that are in a bond . a lone pair is composed of two electrons that are not in a bond.
Answer:
true
Explanation:
heat will destroy the salt components quicker
Hello!! Your answer would be 3.33x10^-10. Since you are trying to find one place holder for the notation, you will move your decimal 10 times to the right for it to be in scientific notation. Always remember that for scientific notation, you must have one whole number in front of a decimal at all times. After you put the decimal after the first whole number, count how many times you have moved your decimal. If you have a lot of zeros in front of your numbers, you will always have a negative exponent, and if you have a negative exponent, then you will have a lot of zeros. If you have a whole number exponent, it will be up in the 100s, 1000s, or 10000s, something like that. It will have a high value with a higher exponent. I hope I helped!! If you have any more questions then do not hesitate to message me and let me know. Have a great day!! :)