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Alex787 [66]
3 years ago
12

Which statement about living things and their environment is true? A. A seed has everything a plant needs to grow and survive. B

. A plant gets the things it needs to survive from its environment. C. Plants need only water from their environment to survive and grow. D. Plants make their own food, so they do not need anything from their environment.
Chemistry
2 answers:
Annette [7]3 years ago
8 0
The answer is “B. A plant gets the thing it needs to survive from its environment”
lisov135 [29]3 years ago
7 0

Answer:

B. A plant gets the things it needs to survive from its environment.

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What kind of reaction is the chemical equation C6H12O8 + O2 → CO2 + H2O
masha68 [24]

answer : 6CO2 + 6H2O → C6H12O8 + 5O2

Explanation:

Label Each Compound With a Variable

aCO2 + bH2O = cC6H12O8 + dO2

2. Create a System of Equations, One Per Element

C: 1a + 0b = 6c + 0d

O: 2a + 1b = 8c + 2d

H: 0a + 2b = 12c + 0d

3. Solve For All Variables

a = 6

b = 6

c = 1

d = 5

4. Substitute and Verify Result

6CO2 + 6H2O = C6H12O8 + 5O2

8 0
3 years ago
Compare uniformitarianism with catastrophism
wolverine [178]
Catastrophism is a theory that stated that earth was shaped by a suddentmassive violent events that happened within a short period of time.
Uniformitarianism, on the other hand, is a theory that stated earth was shaped by slow and gradual events over a long period of time, which could take millions of years.
3 0
3 years ago
The intermolecular forces present in CH 3NH 2 include which of the following? I. dipole-dipole II. ion-dipole III. dispersion IV
astra-53 [7]

Answer:

I. dipole-dipole

III. dispersion

IV. hydrogen bonding

Explanation:

Intermolecular forces are weak attraction force joining nonpolar and polar molecules together.

London Dispersion Forces are weak attraction force joining non-polar and polar molecules together. e.g O₂, H₂,N₂,Cl₂ and noble gases. The attractions here can be attributed to the fact that a non -polar molecule sometimes becomes polar because the constant motion of its electrons may lead to an uneven charge distribution at an instant.

Dispersion forces are the weakest of all electrical forces that act between atoms and molecules. The force is responsible for liquefaction or solidification of non-polar substances such as noble gas an halogen at low temperatures.

Dipole-Dipole Attractions are forces of attraction existing between polar molecules ( unsymmetrical molecules) i.e molecules that have permanent dipoles such as HCl, CH3NH2 . Such molecules line up such that the positive pole of one molecule attracts the negative pole of another.

Dipole - Dipole attractions are more stronger than the London dispersion forces but weaker than the attraction between full charges carried by ions in ionic crystal lattice.

Hydrogen Bonding is a dipole-dipole intermolecular attraction which occurs when hydrogen is covalently bonded to highly electronegative elements such as nitrogen, oxygen or fluorine. The highly electronegative elements have very strong affinity for electrons. Hence, they attracts the shared pair of electrons in the covalent bonds towards themselves, leaving a partial positive charge on the hydrogen atom and a partial negative charge on the electronegative atom ( nitrogen in the case of CH3NH2 ) . This attractive force is know as hydrogen bonding.

7 0
3 years ago
The subatomic particles found in the nucleus are
sattari [20]
C.) protons , the nucleus contains 2 subatomic particles , one protons & neutrons ( protons have a + charge & neutrons have no electrical charge
4 0
3 years ago
Read 2 more answers
An acid containing the cooh group is called a carbo-oxy acid.
Alexandra [31]
Yes if a molecule with a COOH group is called a carboxylic acid.

hope that helps 
4 0
4 years ago
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