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Iteru [2.4K]
3 years ago
11

Derek lives in a hot, humid climate. He has two rose bushes in pots in his yard. The rose bushes grow quickly and bloom with lar

ge, red roses. Derek moves to a cold, dry climate at the same altitude and notices that his rose bushes stop growing and do not have large blooms. He hypothesizes that the rose bushes are not receiving enough water because he is now in a dry climate. He waters them more often, but they do not improve.
Which of the following scientific questions should he ask next to find out what is wrong with his roses?

A. Does temperature affect the growth of the rose bushes?
B. Do rose bushes grow better in high or low altitudes?
C. Which rose bush has larger, more colorful blooms?
D. How much do rose bushes cost in his new area?
Chemistry
1 answer:
nikitadnepr [17]3 years ago
8 0

the answer is A. Does temperature affect the growth of rose bushes because remember their asking u what question can you answer doing the investigation.

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Which units can be used to measure length or distance? Check all that apply.
motikmotik

Answer:

<u>M</u><u>eter,</u><u> </u><u>kilometer </u><u>&</u><u> </u><u>inch </u>- used to measure length or distance.

8 0
2 years ago
there are 1540 megawatts of wind-generated electricity produced globally every year. This amount is equivalent to how many kilow
Reptile [31]

1.54 x 10⁶kW

Explanation:

The problem here is converting from megawatts into kilowatts.

  Given 1540megawatts.

The mega- and kilo- watts are prefixes that denotes multiples of units.

  1 megawatt = 10⁶watts

  1 kilowatt = 10³watts

Now given 1540megawatts power to Kilowatt power;

   We see that :

   1000kW = 1mW

 1540mW x \frac{1000kW}{1mW} = 1.54 x 10⁶kW

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4 0
3 years ago
Which best describes a compound such as sodium chloride?
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Answer:

i think it is the last option a pure substance that can be separated into different elements by chemical means

Explanation:

4 0
3 years ago
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Answer:

A phosphorus atom forms a P3- ion by gaining three electrons.

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4 0
2 years ago
Chemistry help!<br><br>Zoom in to see better!!​
inna [77]

Answer:

11.9 g of nitrogen monoxide

Explanation:

We'll begin by calculating the number of mole in 6.75 g of NH₃. This can be obtained as follow:

Mass of NH₃ = 6.75 g

Molar mass of NH₃ = 14 + (3×1)

= 14 + 3

= 17 g/mol

Mole of NH₃ =?

Mole = mass /molar mass

Mole of NH₃ = 6.75 / 17

Mole of NH₃ = 0.397 mole

Next, we shall determine the number of mole of NO produced by the reaction of 0.397 mole of NH₃. This can be obtained as follow:

4NH₃ + 5O₂ —> 4NO + 6H₂O

From the balanced equation above,

4 moles of NH₃ reacted to produce 4 moles of NO.

Therefore, 0.397 mole of NH₃ will also react to produce 0.397 mole of NO.

Finally, we shall determine the mass of 0.397 mole of NO. This can be obtained as follow:

Mole of NO = 0.397 mole

Molar mass of NO = 14 + 16 = 30 g/mol

Mass of NO =?

Mass = mole × molar mass

Mass of NO = 0.397 × 30

Mass of NO = 11.9 g

Thus, the mass of NO produced is 11.9 g

7 0
2 years ago
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