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
Scorpion4ik [409]
3 years ago
9

When a white powder is added to a liquid in a beaker at room temperature, the beaker becomes too hot to touch. What kind of reac

tion is this an example of?
A. a fusion reaction
B. a combustion reaction
C. an exothermic reaction
D. an endothermic reaction
Chemistry
2 answers:
Varvara68 [4.7K]3 years ago
6 0
<span>C. an exothermic reaction
</span>
liberstina [14]3 years ago
3 0
The answer is <span>an C.exothermic reaction</span>
You might be interested in
The benedict's test indicates a positive result when the solution turns.
aleksandrvk [35]
it turns yellow to orange
7 0
2 years ago
If 5 grams of hydrogen reacted with 40 games of oxygen to form water, how much of water would be formed?
GREYUIT [131]
2H₂ + O₂ = 2H₂O

n(H₂)=m(H₂)/M(H₂)
n(H₂)=5g/2.0g/mol=2.5 mol

n(O₂)=m(O₂)/M(O₂)
n(O₂)=40g/32.0g/mol=1.25 mol

H₂ : O₂ = 2 : 1

2.5 : 1.25 = 2 : 1

n(H₂O)=n(H₂)=2n(O₂)=2.5 mol

m(H₂O)=n(H₂O)M(H₂O)

m(H₂O)=2.5mol*18.0g/mol=45.0 g
3 0
3 years ago
9.23 x10^23 H3PO4=molesAu
Virty [35]
huh???? thats makes ni sencse
5 0
2 years ago
Step 6: Measure Pressure and Volume with the Book and 1 kg of Weight
goldfiish [28.3K]

Answer:

Starting from the top

1.498

1.18

43.5

51.3

For step 7

2.498

1.27

40.5

51.4

For 8

3.498

1.37

37.5

51.4

For 9

4.498

1.47

35.0

51.5

Lmk if anyone needs earlier steps, but I'm going to assume no since you're already on 6

Explanation:

7 0
3 years ago
Read 2 more answers
What does point of view refer to?
Irina-Kira [14]

Answer:

I'd say the most reasonable answer is perspective.

Explanation:

"Point of view" is about who is telling and sharing the details in what you are writing or reading. I'm not 100% sure because the word "perspective" doesn't seem like the right word to use, but it's better than the other two in my opinion.

6 0
3 years ago
Other questions:
  • How does a buffer resist change in ph upon addition of a strong acid?
    15·1 answer
  • Which answer choice lists the number and type of elements in a compound in the way that is close to their actual arrangement?
    5·1 answer
  • A student hypothesized that the green color of plant leaves is related to exposure to sunlight and tested this hypothesis by pla
    9·2 answers
  • Why do real gases not behave exactly like ideal gases?
    13·2 answers
  • Which best describes a compound such as magnesium oxide? an impure substance that is made up of two elements a mixture of two un
    14·2 answers
  • How many grams of CO2 are in 2.52mol of CO2
    7·1 answer
  • PLZ HELP PLZ PLZ ILL MARK AS BRAINLIESTT!!!!
    14·1 answer
  • How many electron regions is in a nitrate ion using molecule geomerty
    8·1 answer
  • Energy naturally moves from a heat source to a heat ______.
    11·1 answer
  • If we compare a mole of carbon atoms to a mole of oxygen atoms, which sample will contain more atoms?.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!