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
UNO [17]
3 years ago
9

How many mm are equal to 21 L. How many mg are equal to 9 g. How many grams are equal to 400 kg

Chemistry
1 answer:
liberstina [14]3 years ago
8 0
<span>How many mm are equal to 21 L? 

1 L = </span>1000000 mm

Convert:-

1000000 × 21 = <span>21000000

21 l = </span><span>21000000 mm

</span><span>How many mg are equal to 9 g?

1 g = 1000 mg

Convert:-

9 </span>× 1000 = 9000

9 g = 9000 mg
You might be interested in
The buret clamp was used to stabilize the
Firdavs [7]

Answer:

thermometer, calorimeter

Explanation:

6 0
3 years ago
Read 2 more answers
Are photosynthesis and cellular respiration part of the land-based carbon cycle of water-based carbon cycle
Dmitrij [34]
It would be the water based carbon cycle
3 0
3 years ago
What are the types of Asexual reproduction? <br><br> need this asap bro uyftghjkddfs
kolezko [41]

Answer:

The types of Asexual reproduction include:  fission, fragmentation, budding, vegetative reproduction, spore formation and agamogenesis.

5 0
3 years ago
Plato answers . Which field will she use
Ira Lisetskai [31]

Answer:

A. biology

Explanation:

biology is the human body

6 0
3 years ago
Read 2 more answers
If irons temperature goes from 50c to 75c in a 20g sample, how many joules of heat were used?
Marina CMI [18]

Answer:

Option D. 230 J

Explanation:

We'll begin by calculating the temperature change of the iron. This can be obtained as follow:

Initial temperature (T₁) = 50 °C

Final temperature (T₂) = 75 °C

Change in temperature (ΔT) =?

ΔT = T₂ – T₁

ΔT = 75 – 50

ΔT = 25 °C

Thus, the temperature change of the iron is 25 °C.

Finally, we shall determine the amount of heat energy used. This can be obtained as follow:

Mass (M) = 20 g

Change in temperature (ΔT) = 25 °C

Specific heat capacity (C) = 0.46 J/gºC

Heat (Q) =?

Q = MCΔT

Q = 20 × 0.46 × 25

Q = 230 J

Thus, the amount of heat used was 230 J

3 0
3 years ago
Other questions:
  • CAN SOMEONE PLEASE WRITE ME SHORT STORY FOR THIS. I'LL GIVE YOU BRAINLIEST. I PROMISE. 98 POINTS
    6·1 answer
  • Specialized proteins which function as catalysts for organic reactions are:
    10·2 answers
  • A<br> In 25 words or fewer, what is the scientific question for the boiling<br> water experiment?
    14·1 answer
  • What is a group of electrons orbiting at roughly the same distance from the nucleus
    13·1 answer
  • Why is light energy written on the left side of the equation
    14·1 answer
  • Suggest two reasons why copper should not be disposed of in landfill sites
    7·1 answer
  • An element’s atomic number is the?
    6·2 answers
  • Is pre ap chemistry hard in high school?
    10·2 answers
  • Consider an ice cube and a hot radiator. Which has the higher thermal energy?
    6·1 answer
  • How does the curing basically take place?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!