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tekilochka [14]
3 years ago
11

Color change is a good way to detect a chemical reaction. True or False?

Chemistry
2 answers:
aleksley [76]3 years ago
7 0

Answer:

True

Explanation:

It can be a indicator of a reaction

Airida [17]3 years ago
3 0
This is commonly true, but not always.
You might be interested in
Molarity, chemistry general chemistry
Anna007 [38]

Answer:

a. 0.026 M

Explanation:

Molarity is a measure of the molar concentration of a solution. It can be calculated by using the following formula:

Molarity = n/V

Where;

n = number of moles (mol)

V = Volume of solution (L)

Based on the information provided;

V = 23.2mL = 23.2/1000 = 0.0232 L

n = ?

To get the number of moles of KHP, we use the formula:

mole = mass/molar mass

mole (n) = 0.123/204.2

mole (n) = 0.0006024mol

Molarity = n/V

Molarity = 0.0006024 ÷ 0.0232

Molarity = 6.024 × 10^-4 ÷ 2.32 × 10^-2

Molarity = 6.024/2.32 × 10^(-4--2)

Molarity = 2.59 × 10^-2

Molarity = 0.026 M

4 0
3 years ago
When a sound source approaches you, the pitch you hear is
IgorC [24]
Higher <span>C. higher than when the source is stationary</span>
7 0
4 years ago
In the teapot dome scandal, what did the secretary of the interior albert fall lease
yuradex [85]
Albert Fall secretly leased federal oil reserves for personal gain.
7 0
3 years ago
Read 2 more answers
Iron(II) is available to bond with chloride ion. How many of each type of ion will bond to form an ionic compound?
Evgesh-ka [11]

Answer:

D) 1 iron(II), 2 chloride

Explanation:

Iron II chloride is the compound; FeCl2. It is formed as follows, ionically;

Fe^2+(aq) + 2Cl^-(aq) -----> FeCl2

The formation of one mole of FeCl2 involves the reaction one mole of iron and two moles of chloride ions. This means that in FeCl2, the ratio of iron to chlorine is 1:2 as seen above.

Therefore there is one iron II ion and two chloride ions in each mole of iron II chloride, hence the answer.

7 0
4 years ago
Consider the Lewis structure for glycine, the simplest amino acid: (a) What are the approximate bond angles about each of the tw
UkoKoshka [18]

Each carbon is tetrahedrally planar and has three sections, making all bond angles in (a) 120°.(b) hybridization with sp2.(c) If a double bond is present in the compounds, one of the bonds is a sigma connection and the other a pi bond.

<h3>What is an example of an amino acid?</h3>

A basic amino group (NH2), a carboxyl group group (COOH), and an organic Aromatic rings that really is specific to each amino acid make up an amino acid, an organic molecule.

<h3>Which five amino acids are there?</h3>

You must obtain the nine essential amino acids cytochrome c, isoleucine, hcl, lysine, methionine, phenylalanine, alanine, tryptophan, and valine through your food.They are essential for several bodily processes, such as protein biosynthesis, tissue regeneration, and nutrient uptake.

To know more about Lewis structure visit:

brainly.com/question/20300458

#SPJ4

6 0
1 year ago
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