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
tensa zangetsu [6.8K]
3 years ago
5

Report the number 315.05 to 3 significant figures.

Chemistry
1 answer:
emmainna [20.7K]3 years ago
5 0

Answer:

315.

Explanation:

Hello.

In this case, since the given number has five significant figures as the zero is to the right of the first nonzero digit (3), if it is required to report it with three significant figures, it is necessary to "cut" it at the first five without any rounding since the subsequent zero is less than five.

Thus the number turns out:

315

Best regards.

You might be interested in
Two different proteins X and Y are dissolved in aqueous solution at 37 °C. The proteins bind in a 1:1 ratio to form XY. A soluti
aleksklad [387]

Answer:

Kc of reaction is 20.

Explanation:

The two proteins are X and Y.

The [X] = 1mM

[Y]=1mM

At equilibrium, [X] = 0.2mM  [Y] = 0.2mM

we know that equilibrium constant is:

Kc=\frac{[Products]}{[Reactants]}=\frac{[XY]}{[X][Y]}

[XY]= 1-0.20=0.80 mM

putting values:

Kc=\frac{0.80}{0.20X0.20}=20

8 0
3 years ago
A solid piece of lead has a mass of 23.94g and a volume of 2.10cm^3. from these data, calculate the density of lead in si units
jeyben [28]
A density of a substance is constant. It is an extensive property, meaning it does not depend on the amount of substance because it is a ratio of mass to volume. No matter how much of each there is, they would always have a fixed ratio called density. For lead, the density is

Density = mass/volume
Density = 23.94 g/ 2.10 cm³
Density = 11.4 g/cm³
4 0
3 years ago
What is an electromagnetic wave?
ira [324]
Electromagnetic waves<span> or </span>EM waves<span> are waves that are created as a result of vibrations between an electric field and a magnetic field.</span>
6 0
3 years ago
What causes the earth’s magnetic field? A. currents in the earth’s liquid-metal outer core B. the mineral composition of the ear
S_A_V [24]
The magnetic field is believed to be generated by electric currents in the conductive material of its core, created by convection currents due to heat escaping from the core. So your answer is A
8 0
3 years ago
Read 2 more answers
The complete orbital notation diagram of an atom is shown.
Elan Coil [88]

values of the quantum numbers: -6,-5,-4,-3,-2,-1,0,1,2,3,4,5,6

location of the electron: In the 7th energy level away from the nucleus.

Explanation:

From the description of the problem, the magnetic number is given is as -6,-5,-4,-3,-2,-1,0,1,2,3,4,5,6 and the electron is located in the 7th energy level away from the nucleus. Basically, the problem is testing for the understanding of the principal quantum numbers which gives the location of electrons and the magnetic quantum number that shows the spatial orientation of the orbitals.

           The orbital designation of the describe electron is 7d

  1. Magnetic quantum number is limited by the azimuthal quantum number which is the quantum number describing the possible shapes. The azimuthal is given as L= n-1. "n" is the principal quantum number which is 7. Therefore L is 6 and the magnetic quantum numbers are -6,-5,-4,-3,-2,-1,0,1,2,3,4,5,6
  2. The position of the electron is given by the principal quantum number which represents the main energy level in which the orbital is located or the average distance from the nucleus. Here it is 7.

Learn more:

brainly.com/question/9288609

#learnwithBrainly

5 0
3 years ago
Other questions:
  • What conditions are needed for heat to flow
    15·1 answer
  • Write the net ionic equation for the reaction of barium chloride and sodium sulfate.
    12·1 answer
  • What will for if sodium give away one electron ?
    6·1 answer
  • Calculate ΔH∘f (in kilojoules per mole) for benzene, C6H6, from the following data: 2C6H6(l) + 15O2(g)→12CO2(g)+6H2O(l) ΔH∘=−653
    10·1 answer
  • When the reddish-brown mercury(ii) oxide (hgo) is heated, it decomposes to its elements, liquid mercury metal and oxygen gas. if
    15·1 answer
  • What is an aqueous solution compound
    8·1 answer
  • Explane factor affecting stability of alkene?
    8·2 answers
  • Define the following IN YOUR OWN HANDWRITING
    14·1 answer
  • please explain why boiling point melting are not considered chemical properties but are considered physical properties of matter
    8·1 answer
  • In a stable atom, the number of protons are?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!