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
LekaFEV [45]
4 years ago
9

What new information can you add to your definition of chemical change?

Chemistry
1 answer:
ivolga24 [154]4 years ago
5 0
Something that can not be undone. Like baking bread..cant be undone.
You might be interested in
A cube of salt is crushed before being stirred into water.
andrew-mc [135]
Physical change

Giddy Up!!!!!
7 0
4 years ago
Read 2 more answers
Rearrange the equation for the area of a rectangle (A=l x w) to solve for length, L
Mariana [72]
Not sure if this is what you mean but l= A/w
(length equals area divided by width)
4 0
4 years ago
The dimensions of a cupboard are 1.31 m wide
Mnenie [13.5K]

Answer:

The volume of cupboard is 2.0043 m³.

Explanation:

Given data:

width of cupboard = 1.31 m

length of cupboard = 0.9 m

height of cupboard = 1.70 m

Volume = ?

Solution:

Volume = length × width × height

Volume = 0.9 m × 1.31 m × 1.70 m

Volume = 2.0043 m³

The volume of cupboard is 2.0043 m³.

4 0
3 years ago
Read 2 more answers
(c) Polar solutes were separated by hydrophilic interaction chromatography (HILIC) with a strongly polar bonded phase. How would
Lelu [443]

Answer:

(c) The retention time would be higher (d) The retention time would be lower.

Explanation:

For the polar solutes which were separated using the hydrophilic interaction chromatography (HILIC) with a strongly polar bonded phase, the retention time would be higher if eluent were changed from 80 vol% to 90 vol% acetonitrile in water.

However, for the polar solutes which were separated using the normal-phase chromatography on bare silica with methyl t=butyl ether and 2-propanol solvent, the retention time would be lower if the eluent were changed from 40 vol% to 60 vol% 2-propanol.

5 0
3 years ago
A bike rider approaches a hill with a speed of 8.5 m/s. The total mass of the bike and the rider is 85 kg. Find the kinetic ener
krek1111 [17]

KE=3070.625 J

Height = 3.686 m

<h3>Further explanation</h3>

mass of bike+rider=85 kg

velocity = 8.5 m/s

\tt KE=\dfrac{1}{2}mv^2\\\\KE=\dfrac{1}{2}\times 85\times 8.5^2\\\\KE=3070.625~J

Conservation of energy :

(KE+PE)₁ (downhill) = (KE+PE)₂ (up the hill)

PE₁=0⇒h=0

KE₂=0⇒v=0(stop), so equation becomes :

KE₁=PE₂

\tt KE_1=3070.625\\\\KE_1=mgh_2\\\\3070.625=85\times 9.8\times h\Rightarrow h=3.686~m

5 0
3 years ago
Other questions:
  • How does the melting of glaciers affect the density of water at the earth's poles?
    14·1 answer
  • Element X has the following valence electron configuration: [core]ns2np5. Element M has the following valence electron configura
    12·1 answer
  • What are the chemical reactions of a burning candle?
    15·1 answer
  • What happens when two hydrogen atoms enter the ETS as part of either NADH or FADH2? Two hydrogen and one oxygen react to form a
    7·2 answers
  • How do the particles of a gas differ from the particles of a solid?
    13·1 answer
  • Which of the following helps reduce the flow of thermal energy from within your house to the outside?
    9·1 answer
  • When circumstances are right, most materials undergo a process called thermal expansion. Which statement best describes the caus
    15·1 answer
  • What is the acceleration of a 100kg object being pushed with a force of 1000 newton's
    6·1 answer
  • You plan to use the water displacement method to
    13·1 answer
  • Calculate the solubility of Ca(OH)2 in a 0.469M CaCl2 solution at 31°C, given that the Ksp of Ca(OH)2 is 4.96 x 10-6 at that tem
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!