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
Serhud [2]
3 years ago
14

Essentially, the oxygen we breath is

Chemistry
1 answer:
stepan [7]3 years ago
3 0

Answer:

b

Explanation:

Plants need carbon dioxide and let out oxygen

You might be interested in
What is the molar mass of C4H10
Phantasy [73]
Your answer would be 58.12g/mol ;)
7 0
3 years ago
A gas held at constant volume is heated from -5 degrees C to 50 degrees C, if the initial pressure is 1.0 atm, what is the new p
Hunter-Best [27]
1.21 atm, assuming the gas behaves ideally
8 0
3 years ago
Describe the differences between polyp and medusa
stealth61 [152]
One difference is that some animals are polyp and some are medusa.


The other difference is that some animals have medusa in their life or polp in their life cycle.


Hope these two differences helps :D
5 0
3 years ago
Which description of salt is a physical property?
Genrish500 [490]

Answer:

salt is dull and brittle and conducts electricity when it has been dissolved into water, which it does quite easily.

Explanation:

transparent and colourless in crystalline form- rather like ice.

4 0
3 years ago
A sample of methane at a pressure of 1.00 atm and a temperature of 93.1 K is heated at constant pressure to a temperature of 158
Zinaida [17]

Answer:

b. The final state of the substance is a gas.

d. The sample is initially a liquid. One or more phase changes will occur.

Explanation:

Methane has the following properties:

  • Normal melting point: 90.7 K
  • Normal boiling point: 111.65 K

*"Normal" refers to normal pressure (1 atm).

According to this, we can affirm:

  • Below 90.7 K, methane is solid.
  • Between 90.7 K and 111.65 K, methane is liquid.
  • Above 111.65 K, methane is gas.

<em>A sample of methane at a pressure of 1.00 atm and a temperature of 93.1 K is heated at constant pressure to a temperature of 158 K. Which of the following are true? Choose all that apply.</em>

<em>a. The liquid initially present will solidify.</em>  FALSE. The liquid will vaporize.

<em>b. The final state of the substance is a gas.</em>  TRUE.

<em>c. The sample is initially a solid.</em>  FALSE. The sample is initially a liquid.

<em>d. The sample is initially a liquid. One or more phase changes will occur. </em>TRUE.

4 0
3 years ago
Other questions:
  • Why can gas be smelled from your kitchen into your bedroom? Thanks!
    15·1 answer
  • A chemical reaction in which an acid and a base react to produce salt and water is called a neutralization reaction. In the neut
    6·1 answer
  • Heterogeneous mixture are often separated by
    9·1 answer
  • What is the minimum amount of heat required to completely melt 20.0 grams of ice af it's melting point
    8·1 answer
  • A 3.82-g sample of magnesium nitride is reacted with 7.73 g of water. mg3n2 (s) + 3 h2o (â) â 2 nh3 (g) + 3 mgo (s) the yield of
    11·1 answer
  • If aqueous solutions of potassium chromate and barium chloride are mixed, a bright yellow solid (barium chromate) forms and sett
    13·1 answer
  • Sodium tripolyphosphate is used in detergents to make them effective in hard water. calculate the oxidation number of phosphorus
    14·1 answer
  • Examine the peptide. Thr‑Glu‑Pro‑Ile‑Val‑Ala‑Pro‑Met‑Glu‑Tyr‑Gly‑Lys Thr‑Glu‑Pro‑Ile‑Val‑Ala‑Pro‑Met‑Glu‑Tyr‑Gly‑Lys Write the s
    12·1 answer
  • Hands moving on a battery-operated clock is an example of what kind of
    11·2 answers
  • Considering the combustion reaction of propane again, what mass of propane (C3Hg) is necessary to react with 4.53 g of oxygen? C
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!