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
MAXImum [283]
2 years ago
7

Calculate the number of joules needed to change the temperature of 40.0 g of water from 33.0 degree c to 43.0 degree c

Chemistry
1 answer:
nikdorinn [45]2 years ago
7 0

Answer:

c

Explanation:

You might be interested in
Which of these form an ionic bond
zhenek [66]

Answer:

the second 1

Explanation:

7 0
3 years ago
What is the mass (in grams) of 9.27x1024 molecules of methanol(CH3OH)
garri49 [273]
Moles of methanol = 9.27x10^24/6.02x10^23 = 15.398 moles.

Mass of methanol = moles of methanol x molar mass of methanol
                               = 15.398 x 32.042
                               = 493.38 grams.

Hope this helps!

5 0
3 years ago
Read 2 more answers
Find the percent composition of water in barium chloride dihydrate. Round your answer to the
nadya68 [22]

Answer: its 15 its none of those

Explanation:

7 0
2 years ago
All of the substances on the periodic table are classified as elements except
zzz [600]

Answer: all elements in the periodic table is classified as elements

Explanation:

The structure of the table shows periodic trends. The seven rows of the table, called periods, generally have metals on the left and nonmetals on the right. The columns, called groups, contain elements with similar chemical behaviours. Six groups have accepted names as well as assigned numbers: for example, group 17 elements are the halogens; and group 18 are the noble gases

6 0
3 years ago
how many ml of a 22.5% (v/v) ethanol solution would you need to measure out in order to have 12.5 ml of ethanol ?
Aleks [24]
Volume percent<span> or </span>volume/volume percent<span> (v/v%) is used when preparing solutions of liquids. It will have units of volume of the smaller composition substance over the volume of the solution. We calculate as follows:

12.5 mL ethanol = .225 mL ethanol / 1 mL solution ( V )
V = 55.56 mL of the 22.5 % by volume ethanol solution is needed

Hope this answers the question.</span>
8 0
3 years ago
Other questions:
  • The product of a combination reaction is Ca(OH)2. If one of the reactants is H20 wat is the other reactant
    14·2 answers
  • Edta is a synthetic amino acid, which the body perceives as a foreign substance. edta is therefore delivered to the kidneys and
    6·1 answer
  • If the stocks in a system always decrease and never increase, the system has what type of feedback loop? (Select the best answer
    12·1 answer
  • What is the main factor responsible for the acidic and basic character of oxides?
    8·1 answer
  • The following reactions have the indicated equilibrium constants at a particular temperature: N2(g) + O2(g) ⇌ 2NO(g) Kc = 4.3 ×
    10·1 answer
  • N2 + 3H2 =&gt; 2 NH3
    6·1 answer
  • How many electrons are in an atom with the electron<br> configuration of 1s 2s 2p 3s!?
    15·1 answer
  • Why is platinum metal preferred to other metals for the flame test​
    8·2 answers
  • An object at a distance of 30 cm from a concave mirror gets its image at the same point. The focal length of the mirror is​
    6·1 answer
  • Which type of community will have more competition than cooperation?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!