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Vesna [10]
3 years ago
13

What is the proper name for the common sunflower

Chemistry
2 answers:
Zielflug [23.3K]3 years ago
8 0

Answer: Helianthus L.

Explanation:

harkovskaia [24]3 years ago
6 0

Answer: Helianthus L. Sunflower

Explanation:

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Stoichmetric calculations must not be based on the limiting reagent<br>true or false
lara31 [8.8K]

Answer:

Ture

Explanation:

Ture

True

True

True

5 0
3 years ago
John rides his motorcycle with a constant speed of 52 miles per hour. How long will he take to travel a distance of 156 miles?
sesenic [268]

it will take john 3 hours to reach his destination

1 hour = 52 miles x 3 = 156 miles

3 0
3 years ago
Calculate the energy in joules and calories required to heat 25.0 g of water from 12.5C to 25.7C
Alex Ar [27]
The heat (Q) required to raise the temp of a substance is:<span>Q=m∗Cp∗ΔT</span><span> where m is the mass of the object (25.0g in this case), Cp is the specific heat capacity of the substance (for water Cp = 1.00cal/gC, or 4.18J/gC,
and Dt is the change in temp.
You'll have to solve this twice, once with the Cp in calories, and once with the Cp in joules.
</span><span>1380.72 Joules</span>
8 0
3 years ago
+ H₂O
trapecia [35]

Answer:

None of these are correct, because there is no way to balance this equation, but I hope these steps help you figure out your answer.

Explanation:

Count out the single amounts of elements you have on both sides of the equation. To be balanced, you need to have the exact same for each element.

Before balanced Left side.

Cl-2

O-8

H-2

Before balanced right side.

H-1

Cl-1

O-3

That means we need to increase Hydrogen, Chlorine and Oxygen on the right for sure and see how that affects the equation. You can keep adding the Coefficients until the # of elements begin to match on each side.  

(I tried to balance this equation, it doesn't work, there is too much on the reactants side for what the product is.)

8 0
3 years ago
What is the chemical formula for hydrogen peroxide?
Anon25 [30]
Chemical formula is H2O2
7 0
3 years ago
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