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
steposvetlana [31]
2 years ago
12

Summarize our current

Chemistry
1 answer:
WARRIOR [948]2 years ago
8 0

Answer:

Atoms have protons and neutrons in the center, making the nucleus, while the electrons orbit the nucleus. The modern atomic theory states that atoms of one element are the same, while atoms of different elements are different.Atoms consist of three basic particles: protons, electrons, and neutrons. The nucleus (center) of the atom contains the protons (positively charged) and the neutrons (no charge). The outermost regions of the atom are called electron shells and contain the electrons (negatively charged).

You might be interested in
If the empirical formula of an organic compound is CH20, then the molecular mass of the compound could be
belka [17]
I think the answer is C
8 0
3 years ago
1. An example of a polyatomic ion is:<br>a) SO²-4<br>b) Ca?<br>c) O2<br>d) NaCl​
zlopas [31]

Answer:

A is the answer. Ca(calcium) is an element, O2 is a diatomic element, and NaCl is a compound composed of Na(sodium) and Cl(chlorine)

Explanation:

hopefully that helps!!!

8 0
3 years ago
Why are we able to measure the atmospheric pressure in the room and equate this to the pressure of a gas in a test tube?
laiz [17]
Atmospheric pressure is measured with a barometer. A barometer consists of an evacuated vertical tube with its top end closed and its bottom end resting in a container of mercury that is open to the atmosphere The pressure exerted by the atmosphere acts on the exposed surface of the liquid to force mercury up into the tube. Sea level atmospheric pressure will support a mercury column generally not more than 29.92-in. high. Thus, the standard for atmospheric pressure at sea level is 29.92 in.-Hg, which translates to an absolute pressure of 14.69 psia.
The two basic reference points in all these measurements are standard atmospheric pressure and a perfect vacuum.
5 0
3 years ago
What is the definition of outer layer? *
Nataly [62]

Answer:

1    being or located on the outside; external  

2    further from the middle or central part

Explanation:

4 0
3 years ago
Which flowers are prettier, daisies or roses?
zhenek [66]
Overall, it depends on your opinion. Some people think roses are prettier than daisies, and daisies are prettier than roses.

Roses are the definitive symbol for love and appreciation, while daisies are a symbol of Virgin Mary representing her chastity, grace, and purity. Daisies represent beauty and patience as well.
5 0
3 years ago
Other questions:
  • Acetic acid has a Ka of 1.8*10^-5. Three acetic acid/ acetate buffer solutions, A,B, and C, wer made using varying concentration
    8·1 answer
  • Calculate q, the heat released in each reaction.
    14·1 answer
  • a gas station off of the highway in rural iowa was robbed at 1:45am this past saturday the robbers were seen breaking in on secu
    12·1 answer
  • What are the benefits of scientists using the metric system worldwide?select all that apply
    9·1 answer
  • What is the pressure in pascals if the pressure is equal to 380 torr
    12·1 answer
  • How do the data support your claim above? Explain your statement above.
    12·1 answer
  • Issues guidelines for financial system operated by all commerical banks in India​
    12·1 answer
  • An atom of sodium has 11 electrons. Make a sketch of a sodium atom, showing how many electrons it has at each energy level. Infe
    14·1 answer
  • Q is a solution of HCl containing 0.12 mol.dm^-3. P is a solution of Na2CO3 of unknown concentration. Solution Q was titrated ag
    9·1 answer
  • For the reaction CH3COOH→CH3COO– + H+, which statement is true?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!