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shtirl [24]
3 years ago
15

What 2 factors increase the validity of a scientific experiment?

Chemistry
2 answers:
zalisa [80]3 years ago
8 0

Answer:

You can increase the validity of an experiment by controlling more variables, improving measurement technique, increasing randomization to reduce sample bias, blinding the experiment, and adding control or placebo groups.

Explanation:

Nimfa-mama [501]3 years ago
7 0

Answer:

Controlling more variables and improving measurement technique.

Btw, I like your profile picture lol

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The molarity of a 2 liter aqueous solution that contains 222.2 grams of dissolved calcium chloride ( CaCl2), expressed with two
sveta [45]

Answer:

The answer to your question is 1 M

Explanation:

Data

Molarity = ?

mass of CaCl₂ = 222.2 g

Volume = 2 l

Process

1.- Calculate the molar mass of CaCl₂

CaCl₂ = 40 + (35.5 x 2) = 40 + 71 = 111 g

2.- Calculate the moles of CaCl₂

                    111g of CaCl₂ ---------------- 1 mol

              222.2 f of CaCl₂  ----------------  x

                      x = (222.2 x 1) / 111

                      x = 222.2 / 111

                      x = 2 moles

3.- Calculate the Molarity

Molarity = moles / Volume

-Substitution

Molarity = 2/2

-Result

Molarity = 1

3 0
3 years ago
Draw the major organic product(s) of the reaction of p-bromoaniline with HNO2, HCl.
NARA [144]

Answer:

The major product from this reaction is 4-bromobenzene diazonium chloride.

Explanation:

The reaction of p-bromoaniline with HNO2 and HCl produces diazonium salt. When primary aromatic amines are nitrosated with nitrous acid in the presence of a strong acid such as HCl, diazonium salts are frequently formed. The diazonium salts are a crucial step in the production of halides and azo compounds. The necessary reaction mechanism is depicted in the illustration in the diagram below.

3 0
3 years ago
Is this statement true or false? Growth is caused by cells in your body dividing and making new cells.
goblinko [34]

Answer:

true

Explanation:

4 0
3 years ago
Which element or ion listed below has the electron configuration 1s22s22p6?
Anna11 [10]
Count up the number of electrons in each orbital. theres ten electrons which means it has 10 protons. the element would be neon
7 0
3 years ago
Help please. ASAP.
Flauer [41]

Answer:

I believe- If there is more metal for the magnet to reach for, then the strength will grow but it may be harder to pick up off of a surface depending on the weight of the nail. If it is a light nail, it would be more efficient for a quick result in having the magnet to pick it up

Explanation:

4 0
3 years ago
Read 2 more answers
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