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
aleksandr82 [10.1K]
2 years ago
15

A student places six plants of equal sizes into six different, equal-sized pots containing the same amounts of potting soil and

labels the pots U, V, W, X, Y, and Z. Using two pots in each of the three experiments, the student varies the amounts of sunlight, water, or air one plant receives but leaves the other pot unchanged. The tables show the factor varied in each pot and the observations made by the student after one week.
Which conclusion best explains the connection among all three experiments?


A. All plants grown in pots require the same amounts of the abiotic factors for their growth and survival.

B. All plants of the same size require the same amounts of the abiotic factors for their growth and survival.

C. The plants require a balance of all abiotic factors for their growth and survival.

D. The plants depend very little on abiotic factors for their growth and survival.

Chemistry
1 answer:
lana66690 [7]2 years ago
5 0

Answer:  I would go with D.

Explanation: Sorry if it is incorrect

You might be interested in
Can a chemical reaction happen with only one substance? For example, if you select water as the first substance but you don't ad
KATRIN_1 [288]

Explanation:

Yes, a chemical reaction can happen with only one substance.

A typical example of such reaction is the radioactive decay.

Radioactive decay is the loss of elementary particles from an unstable nucleus, ultimately changing the unstable element into another more stable element. .

When radioactive elements are let alone, they decompose to form  stable harmless elements.

An example of radioactive decay is attached in the image below;

8 0
3 years ago
Read 2 more answers
An animal cell has a 0.9% saline environment is placed into a solution that is 9% saline. What will happen to the cell
Softa [21]

The concentration of cell is less than that of the solution .

Hence the cell will be called as hypotonic and the solution will be called as hypertonic.

in order to balance the concentration on the two sides of cell (inside and outside in the solution) there will be movement of solvent particles (through semipermeable membrane ) from cell (lower concentration of solute) to solution (higher concentration of solute).

Thus cell will shrink.



7 0
3 years ago
A 6.165 gram sample of an organic compound containing C, H and O is analyzed by combustion analysis and 10.27 grams of CO2 and 3
e-lub [12.9K]

Answer:

Explanation:

mass of carbon in 10.27 g of CO₂ = 12 x 10.27 / 44 = 2.80 g

mass of hydrogen ( H ) in 3.363 g of H₂O = 2  x 3.363 / 18

= .373 g

These masses would have come from the sample of 6.165 g .

Rest of 6.165 g of sample is oxygen .

So oxygen in the sample = 6.165 - ( 2.8 + .373 ) = 2.992 g

Ratio of C  , H , O in the sample

2.8 : .373 : 2.992

C: H : O : : 2.8 : .373 : 2.992

Ratio of moles

C: H : O : : 2.8/12 : .373/1 : 2.992 / 16

C: H : O : : .2333 : .373 : .187

C: H : O : : .2333/.187 : .373/.187 : .187/.187

C: H : O : : 1.247 : 1.99 : 1

C: H : O : : 5 : 8 : 4 ( after multiplying by 4 )

Hence empirical formula

C₅H₈O₄

Molecular formula ( C₅H₈O₄ )n

n ( 5 x 12 + 8 x 1 + 4 x 16 ) = 132

n x ( 60 + 8 + 64 ) = 132

n = 1

Molecular formula = C₅H₈O₄.

3 0
3 years ago
What is the mass percent of nitrogen in:<br><br> 1. N2O<br> 2. NO<br> 3. NO2<br> 4. N2O2
Temka [501]
We’re going to use the mass percent formula shown below:



For the percent by mass N, we’re going to rewrite the equation as:

98% (271 ratings)
View Complete Written Solution
Problem Details
Calculate the mass percent composition of nitrogen in each nitrogen-containing compound:

c. NO2
5 0
2 years ago
Which is the most important question for deciding if a chemical reaction has occurred?
777dan777 [17]

Answer:

all these are physical properties except release of heat so it's probably heat energy given off

7 0
3 years ago
Read 2 more answers
Other questions:
  • Why does a candle relight if a match is held above the wick just after the flame is<br> blown out?
    11·1 answer
  • 50 POINTS!!!!!!!
    13·1 answer
  • He dissolution of gases in water is virtually always exothermic because __________. a gases react exothermically with water b th
    9·1 answer
  • Need help on number 12
    5·1 answer
  • which will feel warmer to the touch, a bucket of water at 50°C or a bathtub filled with water at 25°C
    11·1 answer
  • CH4(g) gas reacts with F2(g) to produce CH3F(g) and HF(g) .
    8·2 answers
  • I need help with this because it's easy for you guys but I don't understand it
    10·1 answer
  • When Is Mechanical Energy Not Conserved?
    13·1 answer
  • What is the nuclear charge of an atom of Silver?<br> A) +79<br> B) +47<br> C) +108<br> D) +61
    15·1 answer
  • Which reaction is an oxidation-reduction reaction?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!