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
stellarik [79]
3 years ago
10

No one ever helps me ☹️ can y’all look at my questions !?

Chemistry
2 answers:
Orlov [11]3 years ago
8 0

Answer:

   Hope this helps you A typical atom consists of three subatomic particles: protons, neutrons, and electrons (as seen in the helium atom below). Other particles exist as well, such as alpha and beta particles (which are discussed below). The Bohr model shows the three basic subatomic particles in a simple manner. Most of an atom's mass is in the nucleus—a small, dense area at the center of every atom, composed of nucleons. Nucleons include protons and neutrons. All the positive charge of an atom is contained in the nucleus, and originates from the protons. Neutrons are neutrally-charged. Electrons, which are negatively-charged, are located outside of the nucleus. Enjoy your day

Explanation:

Nady [450]3 years ago
4 0

Answer:

Atoms are the fundamental building blocks of all matter and are composed of protons, neutrons, and electrons. Because atoms are electrically neutral, the number of positively charged protons must be equal to the number of negatively charged electrons. Since neutrons do not affect the charge, the number of neutrons is not dependent on the number of protons and will vary even among atoms of the same element.

Explanation:

hope it helps

You might be interested in
What do u need to know to describe the velocity of an object?
Alex_Xolod [135]
To determine the velocity of an object, you need to know the displacement and the change in time. 

v = displacement / change in time

5 0
3 years ago
Read 2 more answers
Please help don’t understand this I attached the question
Rasek [7]

Answer:

58.32

Explanation:

The mass number is one mole and for Mg it is 24.306 for O it is 15.999 and for H it is 1.008. because O and H have 2, you multiply them by 2 and add all the numbers and it equals 58.32

8 0
1 year ago
Read 2 more answers
Four people weigh a standard mass of 10.00g on the same balance. Which of the following sets of readings suggests measurements t
Svetach [21]
An example of accurate but not precise would be 3 people weigh a 10g sample. the weights are 0g, 10g, & 20 grams. the scale is way off but the weights average to the right thing.
precise but not accurate would weighing a 10g sample 3 times and getting 5.5, 5.4, & 5.5. they'e all incredibly similar therefore precise but its nowhere near 10, so not accurate. 
neither precise nor accurate would be 3 weights being 10, 20, &30. It averages wrong and is imprecise.
5 0
3 years ago
Hemoglobin ___________. (Select all that apply).
alexandr1967 [171]

Answer:

Option B and A

Explanation:

  • First our lungs take purified oxygen from air then provide it to heart
  • Our heart gives oxygen to hemoglobin which is present in our blood
  • It carries oxygen to all cells
  • and comes back with cO_2
5 0
2 years ago
A solution contains 1 LaTeX: \times\:×10−4 M OH– ions. Calculate the solution pH value, and determine if the solution is acidic,
oksano4ka [1.4K]

<u>Answer:</u> The pH value of the solution is 10 and the solution is basic in nature.

<u>Explanation:</u>

To calculate the pH of the solution, we need to determine pOH of the solution. To calculate pOH of the solution, we use the equation:

pOH=-\log[OH^-]

We are given:

[OH^-]=1\times 10^{-4}M

Putting values in above equation, we get:

pOH=-\log(1\times 10^{-4})\\\\pOH=4

To calculate pH of the solution, we use the equation:

pH+pOH=14\\pH=14-4=10

There are three types of solution: acidic, basic and neutral

To determine the type of solution, we look at the pH values.

  • The pH range of acidic solution is 0 to 6.9
  • The pH range of basic solution is 7.1 to 14
  • The pH of neutral solution is 7.

As, the pH of the solution is 10 and is lying in the range of basic solution, so the solution is basic in nature.

5 0
3 years ago
Other questions:
  • Calculate the number of moles and the mass of the solute in each of the following solutions:(a) 2.00 L of 18.5 M H2SO4, concentr
    9·1 answer
  • A sample of an unknown gas effuses in 11.1 min. An equal volume of H2 in the same apparatus at the same temperature and pressure
    8·1 answer
  • What is the temperature increase of 6.4 kg of water when it is heated by a 7.7
    10·1 answer
  • A motor “runs” when what is produced by a spinning magnet ?
    12·1 answer
  • Convert 5 moles H2O to liters
    5·1 answer
  • 01:29:45
    15·1 answer
  • At 25.0 ° C, a 10.00 L vessel is filled with 5.25 moles of Gas A and 7.05 moles of Gas B. What is the total pressure?
    9·1 answer
  • Can somebody answer this question for me it might be easy for you answer part 1,2,and 3
    9·2 answers
  • How many grams of aluminum are required to give a total dislocation length of 3,000 miles (enough to stretch from New York City
    9·1 answer
  • NH3 1. Lewis Structure 2. Perspective drawing 3. Number of atoms bonded to central atom 4. Number of non-bonding electron pairs
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!