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
frutty [35]
3 years ago
10

Sally does the work in 2.3 hours and Pete does 2.5

Chemistry
2 answers:
Yuri [45]3 years ago
5 0
Pete because 2.5 x 2.3 is faster
Ipatiy [6.2K]3 years ago
5 0
I agree with the other comment
You might be interested in
Where is energy stored in living sytems
EastWind [94]

Answer:

energy is stored in the chemical bonds in molecules

Explanation:

6 0
3 years ago
What is the oxidation state of cl in hclo4?
Irina-Kira [14]
There is 1 H atom: (1)(+1) = +1 The oxidation number of O is -2. There are 4 O atoms here: (4)(-2) = -8 So the oxidation state of Cl is +7.

NOTE: The maximum positive oxidation number for chlorine is +7,<span> the same as its group number (VII).</span>
3 0
3 years ago
Read 2 more answers
How many uL are present in 250 mL of H20? (1 uL = 10^-6 Liters)​
Vanyuwa [196]

Answer:

250000 μL

Explanation:

If         1 L = 1000 mL

Then  X L = 250 mL

X = (1 × 250) / 1000 = 0.25 L

Now we can calculate the number of microliters (μL) in 0.25 L:

if        1 μL = 10⁻⁶ L

then   X μL = 0.25 L

X = (1 × 0.25) / 10⁻⁶  =250000 μL

4 0
3 years ago
How many joules of heat is lost when a 64 g piece of copper cools from 375 oC to 26 oC? The specific heat of copper is 0.38 J/go
Svetlanka [38]

Answer: 8500 J lost or -8500 J

Explanation:

q=cmt

t=375-26

t=349

q=0.38(64)(349)

q=8487.68 J

Answer must have 2 sig figs, which means it rounds to 8500 J.

7 0
3 years ago
What is 25 m rounded to one significant figure
den301095 [7]

Rounded to 1 significant figure, 25 m would go to 30. This is because 0 isn't significant, so the 3 is the only significant figure.

8 0
3 years ago
Read 2 more answers
Other questions:
  • A 1-L soda bottle contains dissolved carbon dioxide gas. Which bottle would have the highest concentration of dissolved gas? a b
    7·2 answers
  • Four girls share 10 cookies equally.How many cookies does each friend get
    8·2 answers
  • Explain how the periodic table can help in writing electron configurations
    5·2 answers
  • 22.4 liters is the same as:
    8·1 answer
  • 12.A piece of magnesium is in the shape of a cylinder with a height of 5.62 cm
    15·1 answer
  • Which of the following is the correct definition of conduction?
    12·1 answer
  • How much energy is required to completely melt a 250 gram ice cube that is already at 0 degrees Celsius? Show your work &amp; un
    12·1 answer
  • How many total electrons and valence electrons are in the following? (two answers for each compound)
    9·1 answer
  • Consider these two entries from a fictional table of standard reduction potentials.
    6·1 answer
  • Explain chromatography​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!