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skad [1K]
3 years ago
15

NEED HELP ASAP!!!! PLEASE ANSWER THESE QUESTIONS FOR 25+ POINTS AND A BRAINLIEST, KEEP IN MIND THESE QUESTIONS ARE VERY IMPORTAN

T AND WILL DETERMINE MY GRADE!!!!(NO GUESSING, SPAMMING OR LINKS)
This is energy that is stored for later use.

kinetic energy
potential energy
mechanical energy
electromagnetic energy.

A ball rolling down the hill is an example of ___ energy.
1 point
Kinetic
Potential
Electrical
Sound

Requires two parents
1 point
Sexual reproduction
Asexual Reproduction

Small grains that contain a plant's male reproductive cells.
1 point
stamen
pollen
pistil
stigma

C, D , and E are collectively known as the ______.
1 point
Captionless Image
stamen
anther
sepal
pistil

Small leaf-like structures forming an outer circle at the base of a flower.
1 point
petals
sepal
stigma
pistil

The stalk that supports or holds up the anther is the
1 point
style
filament
ovary
pistil

A flower structure that encloses and protects ovules and seeds as they develop.
1 point
Petal
Ovule
Stigma
Ovary

the part of the ovary of seed plants that contains the female germ cell and after fertilization becomes the seed.
1 point
Ovule
Style
Stamen
.Pistil

Supports the stigma, serves as passageway for pollen
1 point
Anther
Style
Stem
Ovule

Renewable energy resources are?
1 point
A resource that cannot be readily replaced by natural means on a level equal to its use.
Invisible resources
Renewable resources that can be naturally restored.
All the above

Coal and oil are?
1 point
Non-Renewable energy resources
Renewable energy resources
None of the above

Bio-fuel and geothermal energy are examples of?
1 point
Non-renewable energy resources
Hydro energy
Renewable energy resources
None of the above

What is the name of flower part #10 ?
1 point
Captionless Image
sepal
pollen tube
filament
stigma

Which of the following is NOT a Natural Resource?
1 point
Coal
Paper
Solar
Wind

What is the disadvantage of using non-renewable resources?
1 point
They have a large carbon footprint.
They can all be used up over time.
They can lead to global w
Chemistry
1 answer:
ladessa [460]3 years ago
3 0

Answer:

1) d

2) a

3) a

4) b

5) d

6) b

7) d

8) a

9) b

10) d

11) a

12) b

13) b

14) b

15) c

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1. The most useful ore of aluminum is bauxite, in which Al is present as hydrated oxides, Al2O3⋅xH2O The number of kilowatt-hour
lianna [129]

*Answer:

Option A: 59.6

Explanation:

Step 1: Data given

Mass of aluminium = 4.00 kg

The applied emf = 5.00 V

watts = volts * amperes

Step 2: Calculate amperes

equivalent mass of aluminum = 27 / 3 = 9  

mass of deposit = (equivalent mass x amperes x seconds) / 96500

4000 grams = (9* amperes * seconds) / 96500

amperes * seconds = 42888888.9

1 hour = 3600 seconds

amperes * hours = 42888888.9 / 3600 = 11913.6

amperes = 11913.6 / hours

Step 3: Calculate kilowatts

watts = 5 * 11913.6 / hours

watts = 59568 (per hour)

kilowatts = 59.6 (per hour)

The number of kilowatt-hours of electricity required to produce 4.00kg of aluminum from electrolysis of compounds from bauxite is 59.6 kWh when the applied emf is 5.00V

5 0
2 years ago
How was the structure of the atom discovered
Gennadij [26K]

Answer:

read down below

Explanation:

Building on the Curies' work, the British physicist Ernest Rutherford (1871–1937) performed decisive experiments that led to the modern view of the structure of the atom. ... Because it was the first kind of radiation to be discovered, Rutherford called these substances α particles.

4 0
2 years ago
Which of the following is false? a. an apoenzyme can catalyze its reaction without its cofactor b an organic cofactor can be cal
ozzi

Answer: Option (a) is the correct answer.

Explanation:

A protein part of an enzyme is known as an apoenzyme. An apoenzyme combines with a cofactor, it is known as holoenzyme.

Without a cofactor an apoenzyme cannot function as cofactor helps in the formation of an active enzyme system and provides a specific site on enzyme for the substrate.

Whereas a non-protein chemical compound or metal ion that helps in the activity of enzyme as a catalyst is known as a cofactor. A metal ion cofactor can be bound directly to the enzyme or to a coenzyme.

The organic non-protein molecules which bind to the protein molecule to form an active enzyme is known as a coenzyme. Coenzymes are small size molecules which help the enzymes to act as a catalyst.

Therefore, we can conclude that the statement an apoenzyme can catalyze its reaction without its cofactor, is false.

3 0
3 years ago
Human reaction time is usually about 0.18 s. If your lab partner holds a ruler between your finger and thumb and releases it fro
Marizza181 [45]

Answer:

–0.16 m

Explanation:

From the question given above, the following data were obtained:

Time (t) = 0.18 s

Acceleration due to gravity (g) = –9.81 m/s²

Height (h) =?

We can obtain how far the ruler will fall by using the following equation:

H = ½gt²

H = ½ × –9.81 × 0.18²

H = ½ × –9.81 × 0.0324

H = –0.16 m

Thus, the ruler will fall –0.16 m before you will catch it.

7 0
2 years ago
7. For the following reaction, which of the following is a conjugate acid-base pair?
spayn [35]

Answer:

HPO42- (aq) + NH4+ (aq)

Explanation:

This is a conjugate acid-base pair. Please forgive if my answers are incorrect. I myself am quite unsure.

8 0
2 years ago
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