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
Zolol [24]
3 years ago
12

Which statement is true if the (triangle here)Hrxn of a reaction is positive?

Chemistry
2 answers:
jek_recluse [69]3 years ago
5 0
The reaction is endothermic.
blagie [28]3 years ago
5 0

Answer:

The reaction is endothermic.

Explanation:

A positive enthalpy change of reaction tells us that the reaction is positive. That is to say the energy that the reaction took in to break bonds is greater than the energy it gave out when it was forming bonds so the net change is positive.

You might be interested in
How many atoms are<br> below?<br> C6H1206
Vinvika [58]

Answer:

24 atoms

Explanation:

6 Carbon atoms

12 Hydrogen atoms

6 Oxygen atoms

8 0
4 years ago
Someone please help will mark as brainliest
Bas_tet [7]

Answer:

4. A subscript is a sentence below a line. You cannot change subscripts in a chemical formula to balance a chemical equation

5. where's/whats the equation??

6. ^^^

Explanation:

7 0
3 years ago
!!! PLEASE HURRY I HAVE 15 MINUTES Describe the proccess which Mendeleev developed the 1 Periodic Table of the Elements
andrezito [222]

In 1869, just five years after John Newlands put forward his law of octaves, a Russian chemist called Dmitri Mendeleev published a periodic table. Mendeleev also arranged the elements known at the time in order of relative atomic mass, but he did some other things that made his table much more successful.  

i hope this helps in some way!

4 0
3 years ago
How many moles of hydrogen are in 3.0 moles of C6H12O6?
Anastaziya [24]

Answer:

36 mol H

Explanation:

1 molecule C₆H₁₂O₆ contains 12 H atoms

1 mol C₆H₁₂O₆ contains 12 mol H atoms;      Multiply by 3

3 mol C₆H₁₂O₆ contains 36 mol H atoms

If you are talking about moles of hydrogen molecules (H₂), you divide 36 by 2 and get 18 mol H₂.

6 0
3 years ago
Match each state of matter with the statement that best describes it.
Stells [14]

Answer:

State of matter is defined as a form in which matter can exist. There are four states of matter known till date. They are as follows:

Solid: Matter is said to be in solid state if it has definite shape and volume. The components of matter are closely packed and have fixed positions within the matter.

Liquid: In liquid state, matter has fixed volume but shape is not fixed, it takes the shape of container in which it is placed. The particles of liquid are close but can move freely or do not have fixed positions.

Gas: Matter in gaseous state has variable volume and shape. The particles of gas are very far from each other thus, they are in constant motion without any fixed position..

Plasma: This state of matter has variable shape and volume. It has neutral atoms, the number of ions and electrons are significant and can move freely in the matter. In order to make plasma, energy is required to strip electron from atom.

According to above definitions, the state of matter is matched with the given statements as follows:

Plasma-Particles are so hot that electrons are stripped from atoms.

Gas-It expands to fill the volume of the container.

Liquid-Particles move past each other freely but do not go fat apart.

Solid-It retains its shape regardless of the shape of the container.

Explanation:

I choose this because It understands how each plasma work.

7 0
3 years ago
Read 2 more answers
Other questions:
  • Combustion of glucose (C6H12O6) is the main source of energy for animal cells: C6H12O6(s)+ 6O2(g)→ 6CO2(g)+ 6H2O(l) =ΔGrxn37°C−2
    6·1 answer
  • Which term defines the simplest form of matter to have unique chemical properties?
    15·1 answer
  • A sample from solution a and solution b were each tested with blue colored glucose indicator solution before the solutions were
    14·1 answer
  • PLEASE ANSWER Which is/are true?
    15·1 answer
  • What is the new item that is formed after a chemical reaction called
    9·1 answer
  • *explain your answer for brainliest
    13·1 answer
  • What are the compounds for the chemical formula B4S
    9·1 answer
  • A scientist is studying a cross between plants that are heterozygous (Xx) for a certain trait. She will use a table similar to t
    14·2 answers
  • Which of the following is the furthest away from Earth?
    12·1 answer
  • Any two uses of mixtures​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!