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
DIA [1.3K]
3 years ago
9

Please help me! Thank you

Chemistry
1 answer:
juin [17]3 years ago
7 0

Answer:

Elements

Explanation:

Atomic number is a property of elements

You might be interested in
The density of an unknown metal was determined to be 2.85 g/ml. the actual density was 2.70 g/ml. what is the percent error in t
Tasya [4]
% error = \frac{|experimental - theoretical|}{theoretical} x 100%

Experimental: 2.85
Actual (theoretical): 2.70

% error = \frac{2.85-2.70}{2.70} x 100% = .055555 x 100% = 5.56%
7 0
3 years ago
What are the two processes of ocean to cloud?
IceJOKER [234]

Answer: The excess amount changes from a gas into a liquid or solid (ice). The process of water changing from a gas to a liquid is called "condensation," and when gas changes directly into a solid, it is called "deposition." These two processes are how clouds form.

4 0
3 years ago
Describe the radial velocity curve. What is its shape? What is its amplitude? What is the orbital period?
lutik1710 [3]

Answer:

The radial velocity curve describes how fast a star is moving in its orbit around a center of mass ( m )

Curve amplitude : This is the maximum value of the radial velocity curve

Radial velocity shape ; The shape of Radial velocity curve is parabolic in nature

Orbital period : Orbital period is the time taken by the star  to make one complete rotation in its orbit

Explanation:

The radial velocity curve describes how fast a star is moving in its orbit around a center of mass ( m ) while Curve amplitude  is the maximum value of the radial velocity curve also The shape of Radial velocity curve is parabolic in nature. and  Orbital period is the time taken by the star  to make one complete rotation in its orbit

7 0
3 years ago
Which formula equation represents the burning of sulfur to produce sulfur dioxide?
Leni [432]

Answer:

S(s) + O2(g) --> SO2(g)

Upper S (s) plus upper O subscript 2 (g) right arrow with delta above upper S upper O subscript 2 (g).

Explanation:

The reaction is given as;

Sulfur + oxygen --> Sulphur dioxide

Sulphur = S

Oxygen = O2

Sulfur dioxide = SO2

So we have;

S(s) + O2(g) --> SO2(g)

The crrect option is option A. Upper S (s) plus upper O subscript 2 (g) right arrow with delta above upper S upper O subscript 2 (g).

5 0
3 years ago
Read 2 more answers
Don’t know how to do #2 someone help
telo118 [61]
I think the answer is a.
5 0
4 years ago
Read 2 more answers
Other questions:
  • Glyceraldehyde is an aldose monosaccharide. The Fischer projection of D-glyceraldehyde is given below. Draw D-glyceraldehyde usi
    9·1 answer
  • Balance the following equation:<br> MgO + HCl = MgCl2* + H2*O
    7·2 answers
  • A sealed vessel containg helium, chlorine and fluorine has a total pressure of 205 kpa and partial pressures of 15 kpa for chlor
    13·1 answer
  • What kind of glass is the following Si, O, Na, B, Al no plastic, no visible change, will shatters to high impact? 1. Pyrex Glass
    7·1 answer
  • A sample of chlorine containing isotopes of mass numbers 35 and 37 was analysed in a mass-spectrometer. How many peaks correspon
    9·1 answer
  • What is the pressure of 5.0 Mol nitrogen (N2) gas in a 2.0 L container at 268 K?
    7·1 answer
  • When an atom gains an electron to become an ion what happens to its size?
    5·1 answer
  • You have three drinks in front of you. you know how they are made, but are unsure which one has the highest concentration of jui
    5·2 answers
  • An ion of calcium has a charge of 2+. The ion contains 18 electrons. How many protons does a neutral atom of calcium possess?
    12·1 answer
  • when you combust 100.0 g 100.0 g of propane at 500. k 500. k and 1.00 atm 1.00 atm in a closed container, you expected to collec
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!