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
vaieri [72.5K]
4 years ago
11

How much energy is needed to warm 7.40g of water by 55 degress C?

Chemistry
1 answer:
zloy xaker [14]4 years ago
8 0
<span>E = mCdT
E = energy, m = mass, C = specific heat capacity, dT = change in temperature.
526 = 0.074C x 17
E = 0.074C x 55
Divide the equations
E/526 = (0.074C x 55)/(0.074C x 17) = 55/17
E = (55 x 526)/17 = 1702 J</span>
You might be interested in
Three students are labeling organisms in their diorama. Zola wants to label the algae and mushrooms as photosynthetic. Saffi wan
Nookie1986 [14]

Answer:

Saffi only

Explanation:

I just took the test and that was the correct answer :)

3 0
2 years ago
What is the number of electrons in oxygen
Semmy [17]
Answer for your question is;

2,6 = 8
The first shell is 2 electrons the other shell is 6 electrons
6 0
2 years ago
Read 2 more answers
___________ is a chemical process that lyses, or splits, molecules by the addition of water functioning in disassembly of polyme
inysia [295]

Answer:

The answer is: Hydrolysis

Explanation:

Hydrolysis is the chemical method in which water molecule is added to a molecule, which leads to the cleavage of one or more chemical bonds in the molecule. In this reaction, the water molecule acts as a nucleophile and breaks down the large molecules like polymers into smaller molecules such as monomers. Hydrolysis reaction includes fragmentation, elimination substitution reactions.                    

5 0
3 years ago
A type of reaction that occurs when oxygen combines with iron to form rust
fiasKO [112]
Oxidation
It is oxidation because two O's 1 x 1 d 2 i's 1 n and 1 a
5 0
3 years ago
Read 2 more answers
2.
schepotkina [342]

Answer:

b. 6.02 x 1023 molecules

Explanation:

The formula mass of ammonia is 14 + 1 × 3 = 17.

The number of moles in 27.6g ammonia is 27.6 ÷ 17 = 1.62 mol.

A mole is 6.02 × 10²³, so the number of hydrogen atoms in a 1.62 moles of ammonia is 1.62 × 6.02 × 10²³ × 3 = 2.93 × 10² atoms.

3 0
3 years ago
Other questions:
  • Rutherford proposed that atoms have positive nuclei. Which statement correctly describes the nucleus of an atom?
    15·2 answers
  • How do I do this whole problem?
    13·1 answer
  • Create the Lewis structure of COCl2 using the following five steps. NOTE: Work only on the currently bolded step below - don't w
    6·1 answer
  • Help me please? I don't understand
    14·1 answer
  • I am finding the formula of a compound that has 60% Carbon, 32% Oxygen, and 8% Hydrogen. Although, when it comes to actually cre
    10·1 answer
  • Consider the reaction and the rate law below.
    10·1 answer
  • A 115-g sample of steam at 100 °C is emitted from a volcano. It condenses, cools, and falls as snow at 0.0 °C. How many kilojoul
    9·1 answer
  • Are pressure and temperature directly proportional?
    15·1 answer
  • You have to summarize in 2 sentences what it says on the right. Read the image please. Will give BRAINLIEST!!! DO NOT ANSWER IF
    11·1 answer
  • What is neutron?<br>What is Atom?<br><br>​
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!