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
Norma-Jean [14]
3 years ago
12

The mass number of an atom is the sum of the atomic number and the number of..

Chemistry
1 answer:
Len [333]3 years ago
8 0
The answer here is neutrons
You might be interested in
Describe the relationships among energy absorption, heat energy, and temperature.
jeka94

they are all an energy particle
8 0
3 years ago
Why is PCL3 called phosphorus chloride
Softa [21]
From your notation, it is phosphorus trichloride. Basically, there are three molecules of phosphorus chloride.
3 0
3 years ago
The solubility of BaCO3(s) in water at a certain temperature is 4.4 10–5 mol/L. Calculate the value of Ksp for BaCO3(s) at this
azamat

Answer : The value of K_{sp} for BaCO_3 is 19.36\times 10^{-10}mole^2/L^2.

Solution : Given,

Solubility of BaCO_3 in water = 4.4\times 10^{-5}mole/L

The barium carbonate is insoluble in water, that means when we are adding water then the result is the formation of an equilibrium reaction between the dissolved ions and undissolved solid.

The equilibrium equation is,

                            BaCO_3\rightleftharpoons Ba^{2+}+CO^{2-}_3

Initially                   -                   0        0

At equilibrium       -                   s         s

The Solubility product will be equal to,

K_{sp}=[Ba^{2+}][CO^{2-}_3]

K_{sp}=s\times s=s^2

[Ba^{2+}]=[CO^{2-}_3]=s=4.4\times 10^{-5}mole/L

Now put all the given values in this expression, we get the value of solubility constant.

K_{sp}=(4.4\times 10^{-5}mole/L)^2=19.36\times 10^{-10}mole^2/L^2

Therefore, the value of K_{sp} for BaCO_3 is 19.36\times 10^{-10}mole^2/L^2.

3 0
3 years ago
6. If 4 grams of salt is dissolved in 79 grams of water, what is the total mass of the final solution? [1 mark]
nordsb [41]

Answer:

A) 83g

Explanation:

5 0
3 years ago
Read 2 more answers
if atoms of lithium and sodium easily give up a single electron which other elements also have this property
Mars2501 [29]
Basically all of the elements found in Group I of the periodic table also have this property. The ability to easily give up a single valence electron.
6 0
3 years ago
Other questions:
  • 3. Under certain conditions, oxygen gas (O2) has a density of 0.00134 g/mL. Find the volume occupied by 250.0 g of O2 under the
    5·2 answers
  • The acid-dissociation constants of sulfurous acid (h2so3) are kal = 1.7 × 10-2 and ka2 = 6.4 × 10-8 at 25.0°c. calculate the ph
    15·2 answers
  • 1. In part 1, you collected data about how the amount of sugar affects the amount of gas produced. Analyze those data and draw a
    11·1 answer
  • Does anyone know how to do this?
    6·1 answer
  • Describe what happens between the valence electrons in an Ionic Bond.
    6·1 answer
  • What does a mountain ecosystem host?
    14·2 answers
  • The group 13, period 5 metal in the periodic table
    14·1 answer
  • How can water change? I or change into a If 1-Heat causes water toi 2-Water that goes into the alr is called tral air makrs wate
    13·1 answer
  • If an atom has 15 protons, 14 neutrons, and 18 electrons, what is the atom's electrical charge?
    10·1 answer
  • 1
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!