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
Ganezh [65]
2 years ago
9

Which is true of the enthalpy of a reaction?

Chemistry
1 answer:
salantis [7]2 years ago
6 0

Answer: I think it's B

You might be interested in
Identify which reaction is NOT a chemical reaction.<br> es )
vova2212 [387]

Answer:

You never listed the options

Explanation:

A chemical reaction is a process that involves rearrangement of the molecular or ionic structure of a substance, as opposed to a change in physical form or a nuclear reaction.

4 0
3 years ago
Determine the volume of a piece of gold with a mass of 318.97g
djyliett [7]

Answer:

318 g / 19.32 g     v = 16. your volume is 16 hope this helps

Explanation:

6 0
3 years ago
What is the percent composition of phosphoric acid H3PO4
Agata [3.3K]
Hey there!:

Molar mass H3PO4 = <span>97.9952 g/mol

Atomic Masses :

H = </span><span>1.00794 a.m.u

</span>P = <span>30.973762 a.m.u

</span>O =  15.9994 a.m.u<span>

H % =  [ ( 1.00794 * 3 ) / </span> 97.9952  ]  * 100

H% = <span>3.0857 %

P % = [ ( </span>30.973762 * 1 ) / 97.9952 ] * 100

P% = <span>31.6074 %

O % = [ ( </span>15.9994 * 4 ) / 97.9952 ] * 100

O% = <span>65.3069 %


Hope this helps!</span>
5 0
3 years ago
What do an electron and a neutron have in common?
zmey [24]
What an electron and a neutron have in common is that <u>each particle exists inside an atom,</u>
Atoms consist of three particles: protons (which are positively charged), electrons (which are negatively charged), and neutrons (which have no charge). 
4 0
3 years ago
Read 2 more answers
Does sodium have a positive or negative charge after ionization?
melomori [17]
After ionization, sodium gains a net positive charge cuz sodium loses its 1 valence electron to gain the nearest stable octet which is neon{Ne}. Hope it helps
3 0
3 years ago
Other questions:
  • If the Earth is round... why is the land flat?
    15·2 answers
  • State four steps that we can take to protect our environment from plastic-related pollution.
    5·1 answer
  • In an experiment, sulfuric acid reacted with different volumes of sodium thiosulfate in water. A yellow precipitate was formed d
    7·1 answer
  • A _____ is a crack in Earth's crust where lava comes out. A. crater B. fissure C. caldera D. volcano
    10·2 answers
  • The atomic number of nitrogen is 7. The number of electrons a neutral nitrogen atom has is _______ , and its atomic mass is appr
    12·2 answers
  • Describe the process of evaporation.
    7·1 answer
  • A student increases the temperature of a 673 cm^3 balloon from 275 K to 460 K.
    12·1 answer
  • Write the basic different between exothermic and endothermic reaction and some examples?​
    10·1 answer
  • Place the following events in sequence:
    6·2 answers
  • Rank the following series of molecules or ions in order of decreasing bond energy using their bond order to predict relative mag
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!