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
Morgarella [4.7K]
3 years ago
14

Use the periodic table to find the molar mass of

Chemistry
1 answer:
Naddika [18.5K]3 years ago
3 0

I can give you a clue of getting mass. if it is the atomic number is even multiply by 2 but if the atomic number is odd multiply by 2 and add 1

sodium atomic number = 11 so mass = 11*2 +1 = 23

oxygen. atomic number = 8 so mass = 8*2 = 16

carbon atomic number = 6 so mass = 6*2 = 12

You might be interested in
In which of the following is the number of electrons the ion contains given correctly
larisa [96]

Answer:

B. K+ has 18 electrons

Explanation:

  • Ions are formed when atoms of element gain or loose electrons.
  • <em><u>When an atom looses electrons it forms a positively charged ion and when an atom gains electrons it forms a negatively charged ion.</u></em>
  • Metal atoms such as potassium, magnesium and aluminium looses outer most electrons to positively charged ions.
  • <u>Potassium atom has 19 electrons, 19 protons, with an electronic configuration of 2 : 8 : 8 : 1.</u> <u><em>To form an ion, K looses an electron to form a positively charged potassium ion (K+) with 18 electrons and 19 protons and an electronic configuration of 2:8:8.</em></u>
8 0
3 years ago
A solid is placed in a solution. Which observation most likely indicates that a chemical reaction has occurred?
Ierofanga [76]
A change in color, odor, or texture   

(Also rust)
3 0
3 years ago
What is the effect of scary movies on pulse rates<br><br> a. Independent<br> b. Dependent:
ivolga24 [154]

Answer:

Explanation:

It can increase your heart rate so if that helps??

5 0
2 years ago
Read 2 more answers
Which of the following examples depict(s) a physical property?
dimaraw [331]

Answer:

D

Explanation:

All explain physical no chemical examples were given

6 0
3 years ago
Read 2 more answers
A compound is known to consist solely of carbon, hydrogen, and chlorine. Through elemental
OleMash [197]

Answer:

the empirical (lowest raios) is

C2H4Cl    

Explanation:

A compound is known to consist solely of carbon, hydrogen, and chlorine. Through elemental analysis, it was determined that the compound is composed of 24.27% carbon.

What is the empirical formula of this compound?

the compound has ONLY C, H, and Cl

the % Cl  = 100% - 24.27% -4.03% = 71.7%

in 100 gm, there are 71.7 gm Cl, 24.27 gm C, and 4.03 gm H

the number of moles are Cl=71.7/70.91 =1.01= ~ 1

                                          C = 24.27/12.0 = 2.02 =~ 2

                                           H = 403/1.01 = 3.97 =~   4

so   the empirical (lowest raios) is

C2H4Cl      

                                 

                               

3 0
3 years ago
Other questions:
  • Absolute zero is ______. the lowest possible volume occupied by a gas the lowest possible temperature of a gas the lowest possib
    11·2 answers
  • A certain material has a mass of 565 g while occupying 50 cm3 of space. what is this material?
    5·1 answer
  • A professional technician maintains and operates specialized scientific equipment true or false
    10·1 answer
  • PLEASE explain your answer!!!!​
    8·1 answer
  • A
    15·1 answer
  • The value of Δ G ° ' for the conversion of glucose-6-phosphate to fructose-6-phosphate (F6P) is + 1.67 kJ/mol . If the concentra
    5·1 answer
  • You are using a Geiger counter to measure the activity of a radioactive substance over the course of several minutes. If the rea
    5·1 answer
  • Starch is considered a biological polymer because it contains repeating units (C6H10O5)n.
    12·2 answers
  • How is milk chocolate marketed?​
    8·1 answer
  • Please help me!<br>Will give the brainliest!<br>Please answer correctly.<br>Really urgent!!​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!