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Leno4ka [110]
2 years ago
15

In which state of matter are the particles at rest (not moving at all)?

Chemistry
2 answers:
Sidana [21]2 years ago
8 0

Answer:

Solids for sure

particles of solid cant flow.

miss Akunina [59]2 years ago
4 0

Answer:

B)Solids

Solids have  tightly packed particles unlike liquids and gases whose particles can move freely but rate of movement is highest in gas while compared to water

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A different mass of sodium hydroxide was used to make another 25.0 cm' solution.
Dmitriy789 [7]

0.003 moles of NaOH was used in the titration.

<h3>What is titration?</h3>

The concentration of an identified analyte can be found using a simple laboratory technique called titration. As a standard solution with a given concentration and volume, a reagent known as the titrant or titrator is created.

By using a solution with a known concentration to measure the concentration of an unknown solution, this process is known as titration. To a known volume of the analyte (the unknown solution), the titrant (the known solution) is typically added from a buret until the reaction is finished. To ascertain the unknown concentration of an identifiable analyte, titration, commonly referred to as titrimetry, is a widely used quantitative laboratory analytical technique (Medwick and Kirschner, 2010). Volume measurements are a crucial component of titration

Concentration in mol/dm3 =

Amount of solution mol

= concentration in mol/dm3 × volume in dm3

Amount of sodium hydroxide

= 0.100 × 0.0250

= 0.00250 mol

To know more about titration, visit:

brainly.com/question/27394328

#SPJ9

6 0
1 year ago
Label the following as either a chemical or a physical change.
Delicious77 [7]
Physical,physical, chemical, chemical, physical, chemical
7 0
3 years ago
Read 2 more answers
1. Analysis of an unknown substance formerly used in rocket fuel reveals a composition of 93.28% nitrogen and 6.72% hydrogen by
Nitella [24]

Answer:

The formula of the compound is:

N2H2

Explanation:

Data obtained from the question:

Nitrogen (N) = 93.28%

Hydrogen (H) = 6.72%

Next, we shall determine the empirical formula for the unknown compound. This is illustrated below:

N = 93.28%

H = 6.72%

Divide by their molar mass

N = 93.28 /14 = 6.663

H = 6.72 /1 = 6.7

Divide by the smallest

N = 6.663 / 6.663 = 1

H = 6.72 /6.663 = 1

Therefore, the empirical formula is NH.

Now, we can obtain the formula of the compound as follow:

The formula of a compound is simply a multiple of the empirical formula.

[NH]n = 30.04

[14 + 1]n = 30.04

15n = 30.04

Divide both side by 15

n = 30.04/15

n = 2

Therefore, the formula of the compound is:

[NH]n => [NH]2 => N2H2

6 0
3 years ago
The temperature of a sample of water increases from 20c to 46.6c as it absorbs 5650 Joules of heat. What is the mass of the samp
WINSTONCH [101]

Answer: 51 g

Explanation:

5 0
2 years ago
Tokyo, Japan is 8817.6 km from california. How many milimeters is this? Answer in scientific notation.
Novosadov [1.4K]
8.8176*10^9
Hope this helps!
8 0
3 years ago
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