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Pie
2 years ago
5

In the past when a commodity has been identified as a new source of biofuel in addition to its usual food uses, that commodity h

as seen a spike in prices
True or False
Chemistry
1 answer:
stiks02 [169]2 years ago
5 0
I think that the answers is true
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Helppp ASAP Don’t GUESSSSS
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I'm gonna go ahead and guess, and say its B.

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3 years ago
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Find the volume of 56.0 grams of O2
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Answer:

39.2 L at STP

Explanation:

Convert the grams to moles first by dividing 56.0 by the molar mass of O2 (32.0) then convert to volume by multiplying by 22.4.

= 39.2 L

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3 years ago
What is the empirical formula for naphthalene
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1.Start with the number of grams of each element, given in the problem.

2.Convert the mass of each element to moles using the molar mass from the periodic table.

3.Divide each mole value by the smallest number of moles calculated.

4.Round to the nearest whole number. This is the mole ratio of the elements and is.

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3 years ago
Think about your morning from when you wake up until you arrive at school. Describe the forms of energy you encounter or use dur
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Answer:

When sleeping the energy exhibited is Potential energy. When I wake up and I’m preparing for the day I use kinetic energy which is the energy exhibited during motion.

Eating before leaving the house means I used chemical energy for replenishment of nutrients to aid the performance of more activities for the day. The food eaten and the physical activities also give rise to thermal energy which is why we sweat.

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3 years ago
Va rog ! urgent! E pt chimie ​
n200080 [17]

Answer:

An element

It stays shiny

Explanation:

Pure Gold is an element.

An element is a distinct substance that cannot be split-up into simpler substances. Such substances consists of only one kind of atom.

There are over a hundred elements known to date.

As an element, Gold is classified as a metal due to its very unique set of properties.

One of the indicator that gold does not react with oxygen is that it stays shiny. It does not give rusty look when exposed to air.

Substances that combines with oxygen have a rusty look or change appearance when expose to air. For example, iron.

5 0
3 years ago
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