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3 years ago

How is light energy converted to chemical energy?

Chemistry

2 answers:

USPshnik [31]3 years ago

5 0

Answer:

Photosynthesis is the process in which light energy

Explanation:

ipn [44]3 years ago

3 0

Answer:

Photosynthesis is the process in which light energy is converted to chemical energy in the form of sugars. In a process driven by light energy, glucose molecules (or other sugars) are constructed from water and carbon dioxide, and oxygen is released as a byproduct.

Explanation:

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Britta traveled 1250 km on her road trip and used 209 L of gasoline, filling her tank atan average of 1.14 euros per liter. Pier

icang [17]

Answer:

Britta paid more per kilometer driven

Explanation:

1) Britta:

Distance traveled: 1,250 Km

Gasoline used: 209 liter

Gasoline price: 1.23 euros / liter

Cost per km = total cost of gasoline / distance traveled

Cost per km = gasoline used × gasoline price / distance traveled

Cost per km = 209 liter × 1.14 (euro / liter) / 1,250 km = 0.19 euro / km

2) Pierce:

Distance traveled: 1,405 km

Gasoline used: 175 liter

Gasoline price = 1.23 euros / liter

Cost per km = 175 liter × 1.23 (euro / liter) / 1,405 km = 0.15 euro / km

3) Comparison:

0.19 > 0.15 ⇒ Britta paid more per kilometer driven

4 0

4 years ago

What environmental factors might make a strong odor an advantage for the

Molodets [167]

Answer:

Rafflesia smell like roadkill others for only a few hours and while a few smaller species barely smell at all. And In short a parasitic life is heavily specialized biological requirements.

Explanation:

6 0

3 years ago

Which of the water samples described below has the greatest average kinetic energy per molecule? A. 1 liter of water at a temper

Triss [41]

Answer:

A. 1 liter of water at temperature 75°C

Explanation:

According to kinetic molecular theory average kinetic energy of molecules are directly proportional to absolute temperature.

the quantity of the sample does't depend on kinetic energy only temperature

does so the choice with highest temperature is the correct choice

∵ 1 liter water at 75°C has highest average kinetic energy per molecule

5 0

4 years ago

Which type of radioactive particle was emitted by the following isotopes?

Paul [167]

Radioactive decay or disintegration is a process through which unstable nuclei form q more stable nuclei by the release of elementary particles like alpha particles, beta, protons, neutrons etc along with the release of energy.

In the given examples:

a) N-13 will get converted in to carbon, C-12 along with the release of a proton as shown below:

₇N¹³ → ₆C¹² + ₁H¹

b) N-15 will get converted in to boron B-11 along with the release of an alpha particle

₇N¹⁵ → ₅B¹¹ + ₂He⁴

3 0

4 years ago

A sample of raw mining ore contains a hydrated salt called copper sulfate tetrahydrate, CuSO4.4H2O, along with other impurities.

julsineya [31]

Answer:

88.5 % of the raw ore is CuSO4*4H2O

Explanation:

Step 1: Data given

Mass of the ore = 10.854 grams

Mass of water = 2.994 grams

Step 2: Calculate moles H2O

Moles H2O = mass H2O / molar mass H2O

Moles H2O = 2.994 grams / 18.02 g/mol

Moles H2O = 0.166 moles

Step 3: Calculate moles CuSO4*4H2O

For 1 mol CuSO4*4H2O we have 4 moles H2O

For 0.166 moles H2O we have 0.166/4 = 0.0415 moles CuSO4*4H2O

Step 4: Calculate mass CuSO4*4H2O

Mass CuSO4*4H2O = moles * molar mass

Mass CusO4*4H2O = 0.0415 moles * 231.67 g/mol

Mass CuSO4*4H2O = 9.61 grams

Step 5: Calculate mass % of CuSO4*4H2O

Mass % = (9.61 grams / 10.854 grams )*100 %

Mass % = 88.5 %

88.5 % of the raw ore is CuSO4*4H2O

4 0

4 years ago