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Natalija [7]
3 years ago
10

Help me with this question!!

Chemistry
1 answer:
skelet666 [1.2K]3 years ago
8 0
Nitrogen is ...19.7
flourine is 80.3...
hope this helps!
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CO2<br> +<br> NaOH<br> &lt;=&gt;<br> NaHCO3<br> Balance
NeTakaya

Answer:

Explanation:

It is balaned

Left side

1 Na

1 C

3 Os

1 H

=========

Right side

1 Na

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1 C

3 Os

5 0
3 years ago
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A gaseous substance turns directly into a solid. Which term describes this change?.
zavuch27 [327]

Answer:

Deposition

Explanation:

Deposition: The gaseous substance turns directly into a solid without undergoing the liquid phase

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2 years ago
I need help with 17
Nezavi [6.7K]
Answer and explanation:

A chemical change occurs when new substances or materials are produced to have different chemical properties from the reactants.

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4 years ago
Which of the following substances would complete a circuit and allow electricity to flow?
Elza [17]

The substances which allow the current to flow in the circuit are:  

Lithium bromide in a solution and Graphite.  

Lithium bromide can be pass the current in the circuit, due to the ability to form ions in the solution Li⁺ and Br⁻ which are mobile and can transport the electrical charge.

In the graphite because of the presence of delocalised electrons, each carbon atom forms three covalent bonds with three other carbon atoms, it conducts electrical current.

In the case of potassium chloride lattice there are in a solid form and the atoms are not mobile so they can not form ions.  In the diamond all the carbon valences are satisfied so the electrical charge can not be transported.

Nitric oxide in a solution is isolated and can not transport the electrical current due to its inability of the to form ions .

5 0
3 years ago
You take a very hot block of metal on top of a cold block of metal. What will
allochka39001 [22]

Answer:

They will both cool down overtime

Explanation:

Once you put something that is hot on something that is cold. They will both be hot, but overtime they will cool down. It can't stay hot forever.

6 0
3 years ago
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