CHEMISTRY HIGH SCHOOL

32 What is the overall charge of an ion that has 12 protons, 10 electrons, and 14 neutrons?(1) 2- (3) 4­
(2) 2+ (4) 4+

Answers

Answer 1
Answer: The charge of a proton is +1, of an electron is -1, and of a neutron is 0.

12*(+1) +10*(-1) +14*0
= 12 -10
= +2

The correct answer is (2) +2.

Hope this would help~
Answer 2
Answer: protons have a 1+ charge
Electrons have a 1- charge
So 12-10 is 2+

Related Questions

The pH scale for acids and bases ranges from _____.A.) 1-7 B.) 0-14 C.) 1-14 D.) 1-12
Air is made up of different gases, such as oxygen, nitrogen, and carbon dioxide. Which statement best describes these three components of air? A)They are all classified as pure substances. B)They cannot react with another substance. C)They are chemically bonded to one another. D)They can be classified as elements.
Write a story about Bacteria using asexual reproduction it must include a reason why it is engaging in asexual reproduction. It must also include one benefit and one disadvantage to asexual reproduction. It must be 6 sentences long and use appropriate spelling and conventions.
The concentration of an acid or base is defined as the ratio of the amount ofO A. solvent to the amount of solute in a solutionO B. conjugate acid to conjugate baseO C. conjugate base to conjugate acidOD. solute to the amount of solvent in a solution
How many atoms of carbon are present in a molecule of :Fructose and galactose

Which molecule contains the smallest number of hydrogen atoms?

Answers

The Molecule that contain the smallest number of Hydrogen atoms is Al(OH)3. It has three hydrogen atoms -


I hopes this helps
 The molecule with a small amount of hydrogen atoms is a Al(OH)3.

The atomic number of an atom is alwaysequal to the number of its. (1) protons, only. (2) neutrons, only. (3) protons plus neutrons. (4) protons plus electrons

Answers

You are correct, the atomic number is always equal to the number of protons in the element. It is the relative atomic mass that is equal to the number of protons+neutrons. Electrons have no mass

ANALOGY: Evaporates are to chemical sedimentary as dead fish are to clastic sedimentary.

Answers

Your answer will be false.

Argon-39 has a half-life of 269 years. How long will it take for 52.5 g of a 60.0 g sample to decay to its daughter isotope?

Answers

The years that will take or 52.5 g of a 60.0 g sample to decay to its daughter isotope is 807 years.

What is half-life?

Half-life is the time required to decay or undergo half the process of any element.

Given the sample is 60.0 g in which 52.5 g sample has to be decay

so, 60 - 52.5 = 7.5 g

It can be seen that it goes three half life

60 >30 >15 >7.5

Now, the half life is 269

269 × 3 = 807 years.

Thus, the years taken are 807 years.

Learn more about isotopes

brainly.com/question/11680817

#SPJ2
For 60.0 g sample, if it remains 60-52.5=7.5 g, it will go through 60->30->15->7.5, 3 half-life. So the time being taken is 269*3=807 years.

Explain why a model of the atom is crucial to understanding chemistry and in explaining the behavior of matter. Use 3 - 4 sentences in your explanation.

Answers

The model of the atom is crucial because without it we wouldn't know how the protons, neutrons, and electrons are connected. Essentially, the protons and neutrons are seen with their bonds while electrons are rotating waves of energy that go around the atom. This model helps us differentiate different elements and isotopes based on the number of components and the way they are connected.

Understanding the model of the atom helps predict how elements will react with each other.

For example, the ball-and-stick model is a molecular model of a chemical substance which is to display both the three-dimensional position of the atoms and the bonds between them.

The atoms are represented by spheres, connected by rods which represent the bonds.

Every ball represent one atom in one molecule and they have different colors for different atoms (for example, carbon is black, hydrogen is white, nitrogen is blue).

There also other models: skeletal models, polyhedral models, composite models, computer-based models.

a gas at 155 kPa and 298 K occupies a container with an initial volume of 1.00 L. By changing the volume, the pressure of the gas increases to 605 kPa as the temperature is raised to 398 K. What is the new volume?

Answers

Given: P1=155kPa P2=605kPa   T1=298K  T2=398K V1=1.00L

Unknown: V2=?

Formula: V2= V1P1T2/P2T1

Solution: V2= 1.00Lx155kPax398K/605kPax298K
               V2= 61,690/180,290=n
Answer: V2= 0.34L is the new volume
Other Questions
A 34.87 g sample of a substance is initially at 27.1 C. after absorbing 1071 J of heat, the temperature of the substance is 145.0 C. what is the specific heat (SH) of the substance?SH=___ J / g * C
What are the trends for ionic size among the cations and anions?
Enzymes are proteins that speed up chemical reactions in the body how do they workA. they increase the surface area of reactantsB.they increase the concentration of reactantsC.they decrease the concentration of productsD. They act as reactants
Use exponential notation to express the number 385,500 ha. one significant figure. b. two significant figures. c. three significant figures. d. five significant figures.