1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alla [95]
3 years ago
14

Round off each number to the indicated number significant figures (sf):

Chemistry
1 answer:
qaws [65]3 years ago
7 0

Answer :

(a) The given number in 2 significant figures will be, 3.6\times 10^3

(b) The given number in 4 significant figures will be, 3.583\times 10^1

(c) The given number in 3 significant figures will be, 2.24\times 10^1

Explanation :

Significant figures : The figures in a number which express the value -the magnitude of a quantity to a specific degree of accuracy is known as significant digits.

(a) The given number 00003554 converted into 2 significant figures.

In 00003554, there are 4 significant figures. Now we have to convert it into 2 significant figures.

The given number in 2 significant figures will be, 3.6\times 10^3

(b) The given number 35.8348 converted into 4 significant figures.

In 35.8348, there are 6 significant figures. Now we have to convert it into 4 significant figures.

The given number in 4 significant figures will be, 3.583\times 10^1

(c) The given number 22.4555 converted into 3 significant figures.

In 22.4555, there are 6 significant figures. Now we have to convert it into 3 significant figures.

The given number in 3 significant figures will be, 2.24\times 10^1

You might be interested in
A student has a large number of coins of different diameters, all made by the same metal. She wishes to find the density of the
Elenna [48]

Answer:

A. In a graduated cylinder, put some quantity of water and measure the initial volume. Then put a coin and measure the volume. To find the volume of the coin, simply subtract the initial volume (water only) from the ending volume (water + coin). To measure the mass, take a dry coin and place it on an electronic scale. Density = mass / volume, so divide the mass by the volume to calculate the density of the coin.

B. When measuring the volume, make sure to look at the graduated cylinder at eye level and read from the bottom of the meniscus.

6 0
2 years ago
How explain two ways to decrease the energy of a wave
Aleks04 [339]

Answer:

gravity that's what I rellat think it is

3 0
3 years ago
A hydrogen only spectrum
nikklg [1K]

Answer:

yes

Explanation:

6 0
2 years ago
What do Arrhenius acids have in common? What do Arrhenius bases have in common? Explain neutralization in terms of the Arrhenius
OLEGan [10]

Besides producing hydrogen ions in water, all Arrhenius acids have a few things in common. They have pH values anywhere from 0 up to 7, they taste and smell sour and they will turn pH paper pink, red, or orange.

<h3>What Arrhenius acids?</h3>

A substance that raises the concentration of H+ ions in an aqueous solution is known as an Arrhenius acid. Traditional Arrhenius acids are highly polarized covalent substances that dissociate in water to form an anion (A-) and the cation H+.

Aqueous Arrhenius acids have distinguishing characteristics that serve as a useful definition of an acid. Acids can turn blue litmus red, produce aqueous solutions with a sour taste, and react with bases and some metals (like calcium) to generate salts. The Latin word acidus/acre, which means "sour," is where the word acid originates.

Although the precise definition solely refers to the solute, the term "acid" is sometimes used to refer to an aqueous solution of an acid that has a pH lower than 8.

To learn more about Arrhenius acids from the given link:

brainly.com/question/22095536

#SPJ4

3 0
1 year ago
By the mid-1870s, _____ and his Standard oil company had monopolized
Lisa [10]
A is the correct answer
8 0
2 years ago
Read 2 more answers
Other questions:
  • What causes element name to change
    15·2 answers
  • A camper burned a piece of paper to start a campfire. is burning paper a physical or chemical change? why? 
    5·1 answer
  • Which example correctly identifies a planet that is a gas giant and a planet that is terrestrial? A. Saturn is a gas giant; Nept
    13·2 answers
  • How many moles of Na2CO3 are in 100.0ml of a 2.0M solution?
    11·1 answer
  • Complete these equations for the ionization of an Arrhenius acid or base in water. Include the states of the products.
    15·1 answer
  • Potassium is an alkali metal that is one of the electrolytes needed by the human body to conduct nerve impulses. The majority of
    8·1 answer
  • Hiiii everyone my previous account has been deleted who knows me plz follow​
    10·2 answers
  • Complete the following math problem and round your answer to the correct number of significant figures. Explain why your answer
    12·1 answer
  • Why is paper chromatography used for amino acids
    14·1 answer
  • water dissolves salts because it: select one: a. is hydrophobic, and salts are also hydrophobic. b. forms covalent bonds with th
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!