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
Musya8 [376]
3 years ago
12

Help with all of these please!

Chemistry
1 answer:
Dovator [93]3 years ago
3 0

Answer:

Is that chemistry ??? Goodnight

You might be interested in
What type of heat transfer occurs when you touch a metal
Galina-37 [17]

Answer:

heat conduction

Explanation:

7 0
3 years ago
Read 2 more answers
Help me please !! is it A,B,C, or D ???
Nata [24]
Ok, after doing an immense amount of research I came up with the most logical answer.

A. Is indicated by a negative enthrall sign.

Reasoning: an endothermic reaction is ice melting and the energy being more than its surroundings. Not specified to ice but as an example, ice is endothermic. That puts d and b out of the running leaving you left with a and c.

When I searched up enthalpy, it said “When a substance changes at constant pressure, enthalpy tells how much heat and work was added or removed from the substance.” Which is similar to c, right? Yeah, meaning both a and c are similar in that aspect.

The reason I decided to go with a is because heat is NOT released into the surrounding, exothermic reactions release energy and heat into the surrounding.
5 0
3 years ago
Discuss Newland octave law and it's rejection
Delvig [45]
It's where chemical elements are organized based on atomic weight. Also, like/similar physical and chemical properties in each interval of 7 elements. 
It was a silly reason it was rejected. It was rejected because it's octaves were too similar to those in music.
I hope this helps!
7 0
3 years ago
"Two major varieties of igneous rock are _______ and ________. What is the difference between these two types of igneous rock?"
grandymaker [24]

Answer:

Intrusive and Extrusive igneous rocks.

Explanation:

Igneous rocks are defined as those rocks that are formed when magma undergoes the process of crystallization and solidification at or below the earth's surface. For example, Granite, Rhyolite, Gabbro and Diorite.

The igneous rocks are of two different types, namely-

  • Intrusive igneous rocks- This type of igneous rocks are formed when the magma crystallizes below or within the earth's crust. For example, Granite.
  • Extrusive igneous rocks- This type of igneous rocks are formed when the magma crystallizes and solidifies at the surface of the earth. For example, Basalt.
8 0
3 years ago
How many significant figures are in 4.800x10-3?​
seraphim [82]
4 after solving =0.004800 where 4,800 is the significant number
5 0
2 years ago
Other questions:
  • Why will a reaction occur between calcium oxalate and platinum?
    7·2 answers
  • Rubbing alcohol evaporates from your hand quickly, leaving a cooling effect on your skin. Because evaporation is an example of a
    12·1 answer
  • All of the following are considered greenhouse gases except
    7·1 answer
  • More and more sodium chloride is added to water until a rock begins to form what type of rock is it?
    12·1 answer
  • Explain the differences among nonpolar covalent bonds, polar covalent bonds, and ionic bonds.
    7·1 answer
  • Explain ray diagram and derive first law of reflection from that.
    8·2 answers
  • 1. How many moles of oxygen gas are required to react with 15.56 moles of hydrogen gas? (2 pts.)
    10·1 answer
  • How would the energy needs of a cell be compared to the energy needs of a city ?
    14·1 answer
  • How many moles of MgO can be made from 5 moles of Mg?<br> 2Mg + O2 -&gt; 2MgO
    11·1 answer
  • Use Appendix C to choose the solution with the higher pH:0.1MSn{NO₃)₂ or 0.1MCoNO₃)₂
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!