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
Paul [167]
3 years ago
10

Round 23.455 cm into 4 significant figures

Chemistry
2 answers:
seraphim [82]3 years ago
4 0
It would be 23.46, since the next number is a 5 so we can round up.

Significant figures are:
ANY number that is not 0
Any 0 between two nonzero digits
Any 0 following a decimal (i.e 1.50)
cluponka [151]3 years ago
4 0

Answer:

23.46

Explanation:

Significant figures are the number of digits or the numbers that contribute to the actual value of a measurement.

Some of the rules to check the number of significant figures are:

- All non-zero digits are always significant

-Zeros in between numbers are significant

-Leading zeros after decimal are not significant

-Trailing zeros after decimal are significant

-If the final digit after decimal is greater than or equal to 5, it can be rounded up to the next higher number

The given value is:

23.455 it has 5 significant figures

Rounding up (since the last digit = 5) to 4 significant figures gives:

23.46

You might be interested in
Water boils at rate of ........and freeze at ........
Schach [20]
100 degree celcius and 0 degree Celsius
7 0
3 years ago
How many liters of fat would have to be removed to result in a 5.2 lb weight loss? The density of human fat is 0.94 g/mL?​
aksik [14]
I don’t even know I’m just answering for pints
7 0
2 years ago
Assuming 100% dissociation, calculate the freezing point and boiling point of 3.11 m K3PO4(aq). Constants may be found here.
aivan3 [116]
Do u have a picture
5 0
2 years ago
What is the difference between osmosis and diffusion?
Scorpion4ik [409]
<span>B. Osmosis is movement of proteins, and diffusion is movement of water.
</span>
3 0
3 years ago
Read 2 more answers
Helpppppppppppppp please
Mama L [17]
1)
-Lithium: Lithium got 3 protons, so it atomic number is 3. It is located on the first column of the periodic table, and belonging to the alkali metal. So lithium is a metal. Lithium is highly reactive.
-Neon: It is located on the 18th column of the periodic table, and belong to the noble gases. So Neon is a nonmetal. Neon's reactivity is very low.
-Fluorine: Located on the 17th column of the periodic metal, fluorine is a nonmetal, and belong to the halogen family. Fluorine's reactivity is high.

2)
-Vertical columns of the periodic table are called columns. There is 18 column in the periodic table, and each one represent a chemical family.
-Horizontal rows of the periodic table care called periods. There is 7 periods in the periodic table.
-The number of protons in an atom is that element's atomic number. And since the atom is electrically neutral, the number of protons is equal to the number of electrons. So if you have the number of electrons, you can still find the atomic number.
-The total of protons and neutrons in an atom is that element's atomic mass. Based on the formula A = Z + N, where A represents the atomic mass, Z the atomic number (number of protons) and N the number of neutrons.
-The elements in group 1 are the most reactive metals. This group is called the Alkali metals. They only have 1 electron in their outer shell which makes them always ready to lose an electron in an ionic bonding.
-The elements in group 17 are the most reactive nonmetals. This group is called the Halogens, with 7 electrons in their outer shell which makes them always ready to win an electron in an ionic bonding.
-The elements in group 18 are the most unreactive elements. This group is called the Noble gases. Their outer shell is always full, so it can't do reactions.

Hope this Helps! :)

4 0
3 years ago
Other questions:
  • If a cylinder holds a volume of 100 cm3, and is 30 cm tall, which is the area of the bottom of the cylinder?
    14·1 answer
  • Which of the following should be done when designing an experiment for a controlled scientific investigation?
    10·2 answers
  • Which metal is liquid at room temperature <br> a) lead<br> b) copper<br> c) mercury<br> d) sodium
    5·2 answers
  • Glycerol boils at a higher temperature than water. What does this indicate about the attractive forces of glycerol?
    9·2 answers
  • What makes it possible to separate substances in a mixture?
    15·1 answer
  • WHAT INVESTMENT OF A $125 WOULD HAVE THE MOST LASTING VALUE FOR YOUR FUTURE?
    7·1 answer
  • A 36-kg girl walks to the top of stairs that are 2.0-m high. How much gravitational potential energy does the girl gain
    5·1 answer
  • Pls help me will give brainliest.
    15·2 answers
  • HCI + NaOH .-&gt; Nacl + H2O <br> what is the Mole ratio of acid to alkali ?<br>​
    11·2 answers
  • Identify the type of sugar corresponding to each name. Sucrose Choose... Fructose Choose... Lactose Choose... Glucose Choose...
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!