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Papessa [141]
2 years ago
9

19) Which one of the following statements describes a chemical property of hydrogen gas?

Chemistry
1 answer:
Rom4ik [11]2 years ago
3 0
B) hydrogen gas burns in air.

explanation: the rest are physical properties.
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A single replacement reaction is a reaction in which one element replaces a similar element within a compound. True or false?
AleksAgata [21]

Answer:

true

Explanation:

A single replacement reaction is a reaction that an element is displaced with another element in a compound

A+BC------AC+B

Mg+2HCl-------MgCl2+H2

8 0
3 years ago
What is the molecule shown below?
FrozenT [24]

Answer:

2,3–dimethylpentane

Explanation:

To know which option is correct, we shall determine the name of the compound.

To obtain the name of the compound, do the following:

1. Determine the longest continuous carbon chain. This gives the parent name of the compound.

2. Identify the substituent group attached to the compound.

3. Locate the position of the substituent group by giving it the lowest possible count.

4. Combine the above to obtain the name of the compound.

Now, we shall determine the name of the compound as follow:

1. The longest continuous carbon chain is 5. Thus, the parent name of the compound is pentane.

2. The substituent group attached is methyl (–CH₃)

3. There are two methyl group attached to the compound. One is located at carbon 2 and the other at carbon 3.

4. Therefore, the name of the compound is:

2,3–dimethylpentane

None of the options are correct.

8 0
2 years ago
What does non polar mean?
Hoochie [10]
When atoms bond together to form molecules, they share or give electrons. If the electrons are shared equally by the atoms, then there is no resulting charge and the molecule is nonpolar.
8 0
3 years ago
What is the pH of a 2.10 x 10⁻⁶ M solution of HCl?<br>​
Delvig [45]

Answer:

pH = 5.7

Explanation:

pH = -log[H^+]  

For HCl pH = -log[HCl] = - log [2.10 x 10⁻⁶ ] = 5.7

5 0
2 years ago
Making models involves creating representations of complex objects or processes to help people study and understand things that
swat32
Somewhat false
observations can be made of a model of the statue of liberty, say, or in real line
6 0
3 years ago
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