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
yuradex [85]
3 years ago
13

We inhale oxygen and exhale carbon dioxide as a result of a ______ change in our bodies. a. physical b. chemical

Chemistry
1 answer:
Vikki [24]3 years ago
8 0
Chemical change because this not the same
You might be interested in
Yield for this reaction?<br> Reaction: N2(g) + 3 H2(g) → 2 NH3 (g)
andriy [413]

Answer:

Yes, yield.

Explanation:

N2(g) + 3 H2(g) → 2 NH3 (g) balanced equation

First, find limiting reactant:  

Moles H2 = 1.83 g x 1 mole/2 g = 0.915 moles H2

Moles N2 = 9.84 g N2 x 1 mole/28 g = 0.351 moles N2

The mole ratio of H2: N2 is 3:1, so H2 is limiting (0.915 is less than 3 x 0.351)

Theoretical yield of NH3 = 0.915 mol H2 x 2 mol NH3/3 mol H2 = 0.61 moles NH3

6 0
3 years ago
What determines an element's chemical properties
Alik [6]
The three factors determine the chemical properties of an element:
<span><span>The number and arrangement of electrons in an atom
</span><span>The number of valence electrons
</span><span>The number and arrangement of electrons</span></span>
5 0
3 years ago
Read 2 more answers
1. How is the modern periodic table organized?
Dimas [21]

1. How is the modern periodic table organized?  Increasing atomic number

2. What information about an atom's properties can you read from the periodic table?       Metal or not metal. Does it want to gain or lose electrons

3. How are the relationships of elements in a group different from the relationships of elements in a period?  a group will have similar properties A period will have different properties

4. Would you expect Strontium (Sr) to be more like potassium (K) or bromine (Br)?  

potassium

5. Barium (Ba) is in Group 2. Recall that atoms in Group 1 lose one electron to form ions with a 1+ charge. What type of ion does barium form?  Ba+2


3 0
3 years ago
DIRECTIONS: Solve the following problems by using G.R.E.S.A (Given, Required,Equation, Solution, and Answer).
Licemer1 [7]

Answer:

SEE BELOW

Explanation:

Given   500 cm^3 = V1    760 mm = P1     (760*2) = P2

Required   V2

P1V1 = P2V2

RE-ARRANGE  TO    P1V1/P2 = V2

(760)(500) /(760*2) = V2

V2 = 250 ML

6 0
2 years ago
Read 2 more answers
Answer on both of them please
aliya0001 [1]
1. Intensive.

2. Physical. 

Hope this helps. :)
3 0
3 years ago
Other questions:
  • A sample of nitrogen gas was collected via water displacement. since the nitrogen was collected via water displacement, the samp
    9·1 answer
  • Which of the following choices represents hydrogen peroxide
    9·2 answers
  • Each liter of air has a mass of 1.80 grams. How many liters of air are contained in
    9·1 answer
  • A hot air balloon is filled with of an ideal gas on a cool morning ( The air is heated to What is the volume of the air in the b
    7·1 answer
  • You know the concentration of your unknown hcl solution is approximately 0.10 m and you would like to use 40. ml to reach the en
    14·1 answer
  • Which type of reaction occurs when a high energy particle collides with the nucleus of an atom, converting that atom to an atom
    7·2 answers
  • In the previous problem, which are the limiting reactants for each reaction? Based on this, calculate the maximum yield of oxyge
    12·1 answer
  • Which of these are broken down during chemical,but not physical,changes
    5·1 answer
  • What can you say about an atom with 4 protons, 2 neutrons, and 5 electrons?
    5·1 answer
  • Iodine-138 decays by beta decay. What element does it produce?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!