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
otez555 [7]
3 years ago
14

Most chemical changes in living things cannot take place without what?

Chemistry
1 answer:
lys-0071 [83]3 years ago
5 0
Fire probably i dont know
You might be interested in
What is the chemical name of N₂O
GrogVix [38]

Nitrous oxide .

The Lewis dot structure is attached

5 0
2 years ago
3 6. 9 TIME REMAINING 57:16 A substance is made up of slow-moving particles that have very little space between them. Based on t
Natalka [10]

Answer:

It is not a gas because its particles do not have large spaces between them.

Explanation:

Solids and liquids have a lot of particles with few spaces between them. Also, gas particles move rapidly in each direction.

5 0
3 years ago
I need help with this problem !
Sloan [31]

Answer:

3

Explanation:

7 0
2 years ago
What happens to the length of a year for each planet as you get farther away from the sun
Bond [772]

Answer:

they get colder and darker, with less light

Explanation:

3 0
3 years ago
0.22 L of HNO3 is titrated to equivalence using 0.10 L of 0.1 MNaOH. What is the concentration of the HNO3?
White raven [17]

Answer:- Molarity of the acid solution is 0.045M.

Solution:- The balanced equation for the reaction of given acid and base is:

HNO_3+NaOH\rightarrow NaNO_3+H_2O

From the balanced equation, they react in 1:1 mol ratio. So, we could easily solve the problem using the equation:

M_aV_a=M_bV_b

where, M_a is the molarity of acid, M_b is the molarity of base, V_a is the volume of acid and V_b is the volume of base.

Let's plug in the given values in the equation:

M_a(0.22L)=0.1M(0.10L)

on rearranging the above equation:

M_a=\frac{0.1M(0.10L)}{0.22L}

M_a = 0.045M

So, the molarity of the acid solution is 0.045M.

3 0
3 years ago
Other questions:
  • When sodium metal is added to water, an orange flame is observed on the metal surface. Based on this observation, what can best
    15·1 answer
  • Find concentration of each ions:<br> 600.0 ml of solution containing 1.50 grams of Cr(NO3)2
    6·1 answer
  • In a chemical reaction, the atoms or starting molecules, are different from the products or ending molecules. atoms are neither
    5·1 answer
  • Which of the following statements is true about cellular respiration?
    6·2 answers
  • [H+] = 2.5 x 10-10 M<br> What’s the pH
    9·1 answer
  • The mass of 0.357 mol of gold is?
    8·1 answer
  • SOMEONE PLEASE HELP WITH 7,8&amp;9
    10·1 answer
  • Kepler proposed the modern model of the solar system.
    7·2 answers
  • and the measured absorbance of a sample solution is 0.367, what is the ferroin concentration in the measured solution
    10·1 answer
  • Of the following metals, which one is the BEST conductor of electricity?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!