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Anna11 [10]
3 years ago
15

I don’t understand how to do this

Chemistry
1 answer:
djverab [1.8K]3 years ago
7 0
Carbon dioxide is a carbon atom and two oxygen atoms, therefore CO2

For the others, they are hydrocarbons.
The first part of the name is determined by how many carbon atoms there are. The second part, is by the type. Alcohol, Alkane, Alkene, alkynes, acid, esters, amides.

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Which of the following conditions would speed up the rate of decomposition? (Select
Anna11 [10]

Answer:

E and B

Explanation:

the warmer the weather the faster it will decompose, this why is why sometimes bodies last longer frozen, or in cool temperatures.

that statement takes a out.

An illness shouldn't effect a decomposing body

Weight also shouldn't effect a decomposing body

Being buried can make bodies decompose fast because of all the bugs and other animals that will get down there and decompose it faster

Answer: B,E

4 0
3 years ago
Identify some other substances (besides KCl) that might give a positive test for chloride upon addition of AgNO3. Based on the r
SashulF [63]

Answer:

Other substances that give a positive test with AgNO3 are other chlorides present, iodides and bromide. However iodides and bromides have different colours hence they will not give a false positive test for KCl. Other chlorides present may lead to a false positive test for KCl.

Explanation:

In the qualitative determination of halogen ions, silver nitrate solution is used. Various halide ions give various colours of precipitate with silver nitrate. Chlorides yield a white precipitate, bromides yield a cream precipitate while iodides yield a yellow precipitate. All these ions or some of them may be present in the system.

However, if other chlorides are present, they will also yield a white precipitate just as KCl leading to a false positive test for KCl. Since other halogen ions yield precipitates of different colours, they don't lead to a false test for KCl. We can exclude other halides from the tendency to lead us to a false positive test for KCl but not other chlorides.

3 0
3 years ago
How do acids preserve food
tatyana61 [14]

Explanation:

acids reduce the pH of the food.if used properly,the pH will be reduced to a range where pathogens and many spoilage organisms will not grow

4 0
3 years ago
Read 2 more answers
Krupton (Kr) is a <br><br>A. Gas<br>B. Metal<br>C. Non of these<br>D. Metalloid​
Katarina [22]
B is gas


The chemical element krypton is classed as a noble gas and a nonmetal.







Love you
3 0
3 years ago
Which polyatomic ion is found in the compound represented by the formula NaHCO3?
stiv31 [10]

Answer: The correct option is 2.

Explanation: Polyatomic ions are defined as the ions in which two or more elements are covalently bonded to act as a single unit. They always carry some charge.

Examples of polyatomic ions are: OH^- known as hydroxide ion, SO_4^{2-} known as sulfate ion

We are given a compound NaHCO_3 having 2 ions which are Na^+ and HCO_3^-. these ions are named as sodium ions and hydrogen carbonate ions.

Therefore, the correct option is 2.

8 0
3 years ago
Read 2 more answers
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