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
Vsevolod [243]
3 years ago
7

PLEASE HELP ME (JOULES)

Chemistry
1 answer:
Svetllana [295]3 years ago
8 0

Answer:

The answer is not 9.9 i used that and got it wrong

Explanation:

You might be interested in
What is the mass number of an atom which contains 21 electrons, 21 protons, and 24 neutrons?
murzikaleks [220]
45 is the atomic mass of the atom. And the name is Scandium 
7 0
4 years ago
Tell me What is an element?
Anarel [89]

Answer:

Any substance that cannot be decomposed into simpler substances by ordinary chemical processes.

Another definition:

An element is the simplest pure substance which can neither be split nor built up from other simpler substances by chemical reaction

5 0
2 years ago
Clo3− draw the molecule by placing atoms on the grid and connecting them with bonds. Include all lone pairs of electrons. Show t
Karo-lina-s [1.5K]

The formal charges of all nonhydrogen atoms are -1.

Solution:-

<u>O 7-4 = 3 O Double bond on one H 5-4 = 1</u>

O-Cl-O 6-7 = -1x4 = -4 N 5-4=1 H-N-H 1-1=0

O 3-4= -1 O O 6-7 = -1(2)=-2 H 1-0=+1

<u>6-6 = 0 1-2 = -1</u>

It will percentage its last valence electron thru a single bond to the terminal oxygen atom. This is in agreement with carbon and hydrogen atoms that each need to form 4 and 1 covalent bonds respectively. because the terminal oxygen atom best has a single covalent bond, it'll have a proper rate of -1.

According to the lewis structure of SO2, The critical atom is sulfur and it is bonded with 2 oxygen atoms thru a double bond. each oxygen atom acquires 2 lone pairs of electrons and the primary sulfur atom has 1 lone pair of electrons.

Learn more about Nonhydrogen atoms here:-brainly.com/question/2822744

#SPJ4

3 0
2 years ago
Help plz I will give u BRAINLIST
Agata [3.3K]

CS2 + 3O2 = CO2 + 2SO2

1 mole of CS2 gives 1 mole of CO2

12 + 2(32) = 76g of CS2  yields 44 g of CO2

Theoretically 1 g of CS2 yields 44/76 g CO2

Therefore 50 g CS2 should yield    50*44 / 76 = 28.95 g

So % yield = 103.6 %  ( which is not possible  because you can't create matter from nothing).

The 30g cannot be right . This is experimental err.

6 0
3 years ago
How are the noble gases stable and do they exist separatly with no other element
Marrrta [24]
Yes they are stable because they follow octet rule but am not sure if they are exist separetly
7 0
3 years ago
Other questions:
  • List the Earth names for the 30 alien elements in order of atomic number
    13·1 answer
  • Is cocl and hcl reaction exothermic or endothermic?
    14·1 answer
  • Avogadro constant is 6.02 1023 (the number of atoms or molecules per mole). What how much charge is there in 1 mole of electrons
    13·1 answer
  • ILL IBE BRAINLY Asian Tsunami 2004:
    14·1 answer
  • The atomic nucleus contains?
    12·1 answer
  • Consider an electrochemical decomposition apparatus comprised of a strontium chloride cell, a berylium chloride cell, and a bari
    10·1 answer
  • The heat of a reaction may be found with the equation q=mc triangle T. A 951 g sample of carbon steel with a specific heat capac
    6·2 answers
  • Cual de las opciones siguientes NO es una característica comun de una institución financiera
    7·1 answer
  • How many moles of oxygen are required to make 4 moles of water?​
    14·2 answers
  • The molar mass of K2S is<br> 110.27 g/mol. What is the mass<br> of 2.75 moles K2S?<br> [?] g K₂S
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!