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-Dominant- [34]
3 years ago
11

Question 1 of 10

Chemistry
1 answer:
Rzqust [24]3 years ago
7 0

Answer:

A. 1km

Explanation:

The 1 km is equal to 1000 m.

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What is the chemical name of this compound? Na2S:
ahrayia [7]

Answer:

Sodium Sulfuret

7 0
3 years ago
For 30 points! Please help me understand this question
oksian1 [2.3K]

Answer:

D) Adding a catalyst

Explanation:

Adding a catalyst decreases activation energy and allows the reaction to occur more easily.

7 0
3 years ago
If the pH of a solution is 5, what is the hydrogen ion concentration?
Gnoma [55]

Yo sup??

We know that

pH=-log[H+]

[H+]=10^(-pH)

pH=5

therefore

[H+]=10^(-5)

The medium is acidic

Hope this helps.

5 0
4 years ago
What is the mass if 1.72 moles of sodium nitrate
alexgriva [62]

Answer:

146 g

Explanation:

Step 1. Calculate the <em>molar mass</em> of NaNO₃

Na =                    22.99

  N =                     14.01

3O = 3 × 16.00 = 48.00

               Total = 85.00 g/mol

Step 2. Calculate the <em>mass</em>  of NaNO₃

Mass of NaNO₃ = 1.72 × 85.00/1

Mass of NaNO₃ = 146 g

8 0
3 years ago
Read 2 more answers
Which is a type of tectonic plate boundary?
UNO [17]
There are three types of tectonic plate boundary. These are divergent, convergent and transform plate boundaries. The divergent boundary is a fault where two plate move away from each other. Convergent is when two separate plates push each other. Lastly, transform plate boundary is when two plates slide past each other.
5 0
3 years ago
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