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
dsp73
3 years ago
11

How many atoms are in 131.97 liters of water vapor at STP?

Chemistry
1 answer:
olchik [2.2K]3 years ago
6 0

It's D. 1.0645 × 1025

You might be interested in
What is an atomic number? An atomic mass?
mrs_skeptik [129]

Answer:

The atomic number is the number of the elements inside the periodic table and the mass is the weight or a number under the elements.

Explanation:

Correct me if I am wrong

4 0
3 years ago
Read 2 more answers
could you please explain operations with scientific notation using this example. 5 × 10³ + 4.3 × 10⁴ i dont understand how to so
TEA [102]

Explanation:

The scientific notation:

a\times10^k

where

1\leq a and k is integer.

We have the example:

(5\times10^3)+(4.3\times10^4)

You can write the numbers in a "normal" form:

5\times10^3=5\times1000=5000\\\\4.3\times10^4=4.3\times10000=43000

Make the sum:

5000+43000=48000

And next write it in the scientific notation:

48000=4\underbrace{8000}_{\leftarrow4}=4.8000\times10000=4.8\times10^4

<h3>Other method:</h3>

You can add numbers in scientific notation if the power of tens in both number is the same.

Therefore you must convert the first number:

5\times10^3=0.5\times10\times10^3=0.5\times10^4

Now, you can make the sum:

(5\times10^3)+(4.3\times10^4)=0.5\times10^4+4.3\times10^4=(0.5+4.3)\times10^4=4.8\times10^4

4 0
2 years ago
How much in mg/l is 0,327 meq/l chloride? I highly appreciate and love to know how you can calculate that.
evablogger [386]
0.00923728813559322 is the answer (:
6 0
2 years ago
1. The basic building block of matter are atoms. Every atom is basically a tiny sphere. Every atom is composed of 2 regions, the
V125BC [204]

1. The answer is: Electron cloud.

Atom is composed of the nucleus and the electron cloud.

Protons (positive particles) and neutrons (neutral particles) are in the nucleus of an atom and electrons (negative particles) are in the electron cloud.

Nucleus is in the centar of the atom atom and electron cloud is surrounding it.

2. The answer is: Electron(s).

The electron (symbol: e⁻) is a subatomic particle whose electric charge is negative one elementary charge.

Metallic bond increace electrical and thermal conductivity.

Substances with metallic bond conduct an electric current in liquid and solid state, because they have mobile electrons. Most metals have strong metallic bond, because strong electrostatic attractive force between valence electrons (metals usually have low ionization energy and lose electrons easy) and positively charged metal ions.

3. The answer is: Nucleus.

Atomic number (Z) is total number of protons and mass number (A) is total number of protons and neutrons in a nucleus.

Nucleus of an atom has positive charge, electrons are negative and atom has neutral net charge.

For example, alpha particle is nucleus of a helium-4 atom, which is made of two protons (p⁺) and two neutrons (n°).

4. The answer is: Proton(s).

The proton (p⁺) is subatomic particle with a positive electric charge of +1e elementary charge.

Protons and neutrons, each with masses of approximately one atomic mass unit, are called nucleons.

Protons and neutrons are hadrons composed of three valence quarks.

The electron has a mass that is approximately 1/1836 that of the proton and the neutron.

5. The answer is: Neutron(s).

Neutron (symbol: n°) is a subatomic particle with no net electric charge.

Protons and neutrons are found in nucleus of an atom (atomic nuclei).  

They are called nucleons and have masses of approximately one atomic mass unit.

Mass number (A) is sum of protons and neutrons in nucleus of an atom.

6. The answer is: Direct relationship.

For example, the Hertzsprung–Russell diagram shows the relationship between the star's absolute luminosities (the total amount of energy emitted per unit of time by a star) versus their effective temperatures (the temperature of a black body that would emit the same total amount of electromagnetic radiation).

The Hertzsprung–Russell diagram puts each star on a graph according the star's brightness against its temperature.

7. The answer is: Inverse relationship.

For example, Wavelength is the inverse of the frequency.

Wavelength is the distance over which the wave's shape repeats.

The frequency is a measure of how often sinusoidal components of the wave repeat per unit of distance.  

Higher the frequency, shorter the wavelenght.

Shorter the frequncy, longer the wavelenght.

8. The answer is: No relationship.

Correlation is any statistical association, how close two variables are to having a linear relationship with each other.

If the correlation between the two variables is zero, there is no relationship

between them. So, variables have nothing to do with each other.

9. The answer is: Experimental control.

An experimental control is used in scientific experiments to minimize the effect of variables which are not the interest of the study.

The two main variables in an experiment are the independent and dependent variable.

Dependent variable is the variable being tested and measured in a scientific experiment.

Dependent variables depend on the values of independent variables. The dependent variables represent the output or outcome whose variation is being studied.

10. The answer is: Controlled variable(s).

A control variable is an experimental element which is constant and unchanged throughout the course of the experimentation.

For example, if the volume is made the control variable, it is not allowed to change it throughout the course of the experiment.

The control variables are not of primary interest to the experimenter.

7 0
3 years ago
What is the density of krypton gas (MM = 83.8 g/mol) at 3.00<br> atm and 100. °C?<br> g/L
stiks02 [169]

Answer:

8.21

Explanation:

3 0
3 years ago
Other questions:
  • Why is a changing ocean temperature of only one or 2 degrees so concerning? Please help!!!! Need this before tomorrow!!!!!!
    10·2 answers
  • How did seed availability affect traits of individuals in the medium ground finch population of the galapagos islands
    14·1 answer
  • Please help<br>What is the possible ions of vanadium?
    10·1 answer
  • What color is a carrot
    9·2 answers
  • 8.
    7·1 answer
  • What is the name of the ionic compound RbCI
    10·1 answer
  • A prion is an infectious self-reproducing protein structure. true or false
    14·1 answer
  • How many molecules of Oxygen are consumed if 24 molecules of Carbon Dioxide are produced?
    7·1 answer
  • The Atomic mass if hydrogen us 1.008 amu. The reason that this value is not a whole number is that
    5·1 answer
  • Na+CL2=2NACL is the balanced reaction for the formation of table salt. Given 20 grams of Na and 10 grams of Cl2, which reactant
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!