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3 years ago

What are seeds made out of?

Chemistry

1 answer:

bazaltina [42]3 years ago

8 0

Depending on the plant the seeds are made out of different amounts of different compounds.

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A glucose molocule is the

Margaret [11]

Answer: Glucose (C6H12O6) is a hexose -- a monosaccharide containing six carbon atoms. Glucose is an aldehyde (contains a -CHO group). Five of the carbons plus an oxygen atom form a loop called a "pyranose ring", the most stable form for six-carbon aldoses.

Explanation:.

7 0

3 years ago

Suppose a 20.0 g gold bar at 35.0°C absorbs 70.0 calories of heat energy. Given that the specific heat of gold is 0.0310 cal/g °

timofeeve [1]

We know, change in temperature is given by :

$T_2-T_1=\dfrac{q}{mC_p(Gold)}$

Putting all given values, we get :

$T_2-T_1=\dfrac{70\ cal}{20\ g\times 0.0310\ cal/g^o\ C}\\\\T_2-T_1=112.90^oC\\\\T_2-35^oC=112.90^oC\\\\T_2=(112.90+35)^oC\\\\T_2=147.9^oC$

Hence, this is the required solution.

6 0

4 years ago

The quantum yield of light-induced chemical reactions (called photochemical reactions) measures the efficiency of the process. T

marissa [1.9K]

Answer:

1.9×10^20

Explanation:

ϕ = number of reaction events /number of photons absorbed

ϕ= 0.26

Energy= power× time

885×10^-3×10×60= 531J

But E= nhc/λ

n= number of photons

h= planks constant

c= speed of light

λ= wavelength

n= Eλ/hc

n= 531×280×10^-9/6.6×10^-34 ×3×10^8

n= 7.5×10^20

Therefore

From

ϕ = number of reaction events /number of photons absorbed

Number of reaction events= 0.26×7.5×10^20

= 1.95×10^20

3 0

4 years ago

Predict the major product of the following reaction of 1-methylcyclohexene with dilute HCl in H2O?

Scrat [10]

Answer:

1-chloro-1-methylcyclohexane

Explanation:

The hydrocarbons with one double bond are called alkenes and are named with the suffix "ene". The alkenes, such as 1-methylcyclohexene, react better in an addition reaction. The double bond will be broken, and the substitutes will be placed at them.

In the reaction with HCl, H and Cl will be added to the carbons of the broken bond. The major product is formed when H is put at the carbon less substituted. Thus, the product will be the one given below, 1-chloro-1-methylcyclohexane.

7 0

3 years ago

Find the energy of the photon if the frequency is 1.97 × 10^8 s^-1

enot [183]

E=hv
=6.625×10^-34Js^-1×1.97×10^8s^-1
Cancel sec inverse.
=13.05×10^-26.

7 0

3 years ago