Answer:
Pour the mixture through a filter to separate the sand, then evaporate the liquid to separate the salt.
Explanation:
There are various methods used to separate single substances from a mixture. The method adopted depends upon the type of mixture and the ingredients used in it. According to the given question, the mixture comprises of sand, salt and water. Here, the first process will be the process of filtration. Through filtration, the salt-water solution and sand can be separated. Salt-water solution can be separated by the process of evaporation in which sat and water will be separated individually.
Answer:
Molecules are made up of atoms.(2 or more) They are what's on the table of elements; they are like building blocks to chemical compounds.
Hope this helps! (^-^)
Answer:
The answer to your problem is: 11136 years
Explanation:
Data
Original amount of carbon-14: 100 frames
half life of carbon-14 = 5,568 years
Only contains 25 grams of carbon-14
Question: how many years ago was this carbon-14 part of a tree.
Process
100 grames of carbon-14
50 grames of carbon-14 one half life
25 grames of carbon-14 one half life
Total two half-lifes
1 half-life ---------------- 5568 years
2 half -lifes ------------- x
x = 2x5568 / 1 = 11136 years
Answer:
It's called the HONC rule, or sometimes known as HONC 1234 rule. The number refers to the number of bonds each of the element makes: Hydrogen makes 1 bond, Oxygen makes 2 bonds, Nitrogen makes 3 bonds and Carbon makes 4 bonds.
Explanation:
<span>Answer: option B) The oxygen end of the molecule has a partial negative charge and the hydrogen end has a partial positive charge.
Justification:
The electronegativity of an element accounts for its relative ability to attract electrons.
Being oxygen more electronegative than hdyrogen (the electronegativity of oxygen is 3.44 while the electronegativity of the hydrogen is 2.20), the electron density will be displaced toward the oxygen, letting it with a partial negative charge and the hydrogen with a partial positive charge.
Finally, since the charge is not symmetrical distributed around a center of the molecule, the molecule ends being polar.</span>