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Step2247 [10]
3 years ago
8

Ideas? Please help this is (science) grade 7th flvs WILL GIVE 30 POINTS!!!!!!!

Chemistry
1 answer:
balandron [24]3 years ago
8 0
The flowers bloom before the leaves grow because the sun is able to get to the forest floor. When the leaves grow, they take up all the sunlight and cast darkness on the forest floor, so the wildflowers can’t bloom anymore. Without sunlight, they can’t photosynthesize and create sugar/food for themselves.
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The density of benzene at 15 ∘C is 0.8787 g/mL. Calculate the mass of 0.1200 L of benzene at this temperature.
Pavel [41]
Use the density to convert volume into mass. 

since the density is in g/ml and the volume was given in Liters, we need to first convert the Liters into mililiters. just multiply by 1000 or move the decimal three times.

0.1200 Liters= 120.0 mL

120.0 mL (0.8787 grams/ 1 mL)= 105 grams
3 0
3 years ago
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N2 reacts with hydrogen gas according to the following equation:
slega [8]

Answer:

Mass = 51 g

Explanation:

Given data:

Mass of nitrogen = 41.93 g

Mass of ammonia formed = ?

Solution:

Chemical equation:

N₂ + 3H₂      →       2NH₃

Number of moles of nitrogen:

Number of moles = mass/molar mass

Number of moles = 41.93 g/ 28 g/mol

Number of moles = 1.5 mol

now we will compare the moles of nitrogen and ammonia.

                N₂          :           NH₃

                  1          :           2

                1.5         :         2/1×1.5 = 3 mol

Mass of ammonia formed:

Mass = number of moles × molar mass

Mass = 3 mol × 17 g/mol

Mass = 51 g

6 0
2 years ago
Organisms breakdown _____ in order to produce____?
Novay_Z [31]

Answer: Organisms breakdown __into smaller particles___ in order to produce__new compounds__?

Explanation:

branliest pls :)

3 0
2 years ago
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What volume of a 5.00M solution of hydrochloric acid contains 8.00mol of HCl?
rjkz [21]

Answer:

520ML and apparently I need to put more in this answer

Explanation:

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7 0
3 years ago
**ASAP**
jek_recluse [69]

the answer is C) . I hope this was helpful!

4 0
3 years ago
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