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Oxana [17]
3 years ago
12

Which of the following would be a valid hypothesis for a scientific investigation about food shopping decision affect food secur

ity?
A spending more money on food results in food of higher nutritional value

B why do people shop at supermarkets more often than local farmers markets

C how is the cost of a food related to its nutritional value

D I prefer the taste of foods purchase from local farmer market​
Chemistry
1 answer:
snow_lady [41]3 years ago
6 0

Answer: Learning is essential to our existence. Just like food nourishes our bodies, information and continued learning nourishes our minds. ... Today, continuous learning forms a necessary part in acquiring critical thinking skills and discovering new ways of relating to people from different cultures.

Explanation: Learning is essential to our existence. Just like food nourishes our bodies, information and continued learning nourishes our minds. ... Today, continuous learning forms a necessary part in acquiring critical thinking skills and discovering new ways of relating to people from different cultures.

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Which of the following equations is balanced?
stiv31 [10]

Answer:

A) 4P + 5O₂  → 2P₂O₅

Explanation:

A) 4P + 5O₂  → 2P₂O₅

This equation is balanced. There are four phosphorus and ten oxygen atoms are on both side of equation.

B) 5P + 4O₂    →    2P₄O₅

This equation is not balanced. There are five phosphorus and eight oxygen atoms on left, eight phosphorus ten oxygen on right side of equation.

C) 2P + O₂    →      P₂O₅

This equation is not balanced. There are two phosphorus, two oxygen atoms on left and two phosphorus five oxygen on right side of equation.

D) 4P + 2O₂    →   2P₄O₅

This equation is not balanced. There are four phosphorus, four oxygen atoms on left and eight phosphorus ten oxygen on right side of equation.

4 0
3 years ago
If a buffer solution is 0.120 M in a weak acid (Ka = 2.0 × 10-5) and 0.440 M in its conjugate base, what is the pH?
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-log ka=pH - log ([A-]/[HA])

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The correct answers are option - A , B, D and E

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Reason -

A hurricane when strikes a coastal area causes serious hazards such as heavy rains, high winds, a storm surge, and even tornadoes. A storm surge pushes the sea water on the shore and thus causes flooding near the coast. However heavy rains cause flooding in inland areas. High winds, storm surge, flooding and tornadoes causes damaging of house, personal property and car.

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