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Makovka662 [10]
3 years ago
7

How is mass measured? What are standard units used to measure mass?

Chemistry
2 answers:
valentinak56 [21]3 years ago
8 0

Answer: Mass in an object is often weighed on a scale. The standard units used to measure mass are the grams (g) and kilogram (kg).

zepelin [54]3 years ago
8 0

Answer:

The basic SI unit of mass is the kilogram(kg). In physics mass is not the same as weight even though mass is determine by measuring the object's weight using spring scale rather than balance scale comparing it directly with known masses..

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Acetaldehyde (CH3CHO) undergoes a Wolf-Kishner reaction, which is the addition of hydrazine (H2NNH2) with subsequent addition of
Anarel [89]

Answer:

Reduced, alkane

Explanation:

Wolf-Kishner reaction is a type of reduction reaction in which aldehydes and ketones are reduced to their corresponding alkane in the presence of a base.

This reaction occurs at high temperature.

Alkane formed has a same number of carbon as aldehyde and ketone.

If acetaldehyde undergoes a Wolf-Kishner reaction in the presence of base and heat, then ethane is formed. Nitrogen is formed as a byproduct.

Here, acetaldehyde is reduced to form ethane.

So, acetaldehyde undergoes a Wolf-Kishner reaction, which is the addition of hydrazine  with subsequent addition of a base and heat. In this reaction, the aldehyde is reduced, resulting in alkane product.

6 0
3 years ago
What is the name of CF4?.
Mumz [18]

Answer:

please mark me as brainlest

Explanation:

carbon fluoride is the answers

8 0
3 years ago
Read 2 more answers
What is the Ka of a 0.0796 M solution of nitrous acid (HNO2) with a pH of 2.95?
Vadim26 [7]

Answer:

Coefficient = 1.58

Exponent = - 5

Explanation:

pH = 2.95

Molar concentration = 0.0796M

Ka = [H+]^2 / [HA]

Ka = [H+]^2 / 0.0796

Therefore ;

[H+] = 10^-2.95

[H+] = 0.0011220 = 1.122 × 10^-3

Ka = [H+] / molar concentration

Ka = [1.122 × 10^-3]^2 / 0.0796

Ka = (1.258884 × 10^-6) / 0.0796

Ka = 15.815 × 10^-6

Ka = 1.58 × 10^-5

Coefficient = 1.58

Exponent = - 5

4 0
4 years ago
Mass, size, and color are examples of what?
Igoryamba
Physical properties of matter
3 0
3 years ago
Given the following balanced chemical reaction:
Gnom [1K]

Answer:

Explanation:

according to balance chemical equation

  3 A2 moles produced 2 moles of A3B

so 12 moles A2 will produced moles of A3B= 12*2/3=24/3= 8

therefore 12 moles of A2 produced 8 moles of A3B

6 0
4 years ago
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