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Artemon [7]
3 years ago
15

4)

Chemistry
1 answer:
Blizzard [7]3 years ago
4 0

Answer: D)

• Take out the ice and stir it up outside where it is warmer.

Explanation:

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Which of these are ways in which a seed might be dispersed? Check all that apply. organisms clouds wind water rocks
alisha [4.7K]

Answer: organisms

wind

water

Explanation:

There are several ways through which plants can move the seed of plants from one place to another. It isn't possible for plants to move their seeds themselves, therefore, there are other methods for their seeds to be moved.

These include fire, wind, animals, organisms, water, fire, water etc. It should be noted that rocks and clouds are not dispersion methods.

6 0
3 years ago
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What kind of energy do plants need to make food?
schepotkina [342]

the answer is chlorophyll.


hope this helped. God bless.

6 0
3 years ago
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Which statement is true for most chemical reactions?
andriy [413]
The statement that is true for most chemical reactions is that A. An energy change occurs during the breaking and forming of chemical bonds. As the reactants react ultimately producing products the atoms of the respective elements within the compounds if present will break and reform ultimately to produce the products, during this change energy transformation from chemical bond formation and breakage occurs, and allows one to determine whether or not a reaction releases energy or needs a substantial amount of energy based on the energy content of the reactants and products.
8 0
4 years ago
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Automobile catalytic converters use a platinum catalyst to reduce air pollution by changing emissions such as carbon monoxide, C
julia-pushkina [17]

Answer: 448 g of O_2 will be required to completely react with 784g moles of CO(g) during this reaction.

Explanation:

To calculate the moles :

\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}    

\text{Moles of} CO=\frac{784g}{28g/mol}=28moles

The balanced chemical equation is:

2CO(g)+O_2(g)\rightarrow 2CO_2(g)  

According to stoichiometry :

2 moles of CO require  = 1 mole of O_2

Thus 28 moles of CO will require=\frac{1}{2}\times 28=14moles  of O_2

Mass of O_2=moles\times {\text {Molar mass}}=14moles\times 32g/mol=448g

Thus 448g of O_2 will be required to completely react with 784g moles of CO(g) during this reaction.

6 0
3 years ago
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1. Which of the following is not true of a covalent compound?
sweet-ann [11.9K]
1. Which of the following is not true of a covalent compound? 
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</span><span>2. What type of compound is almost always found as a solid? 

</span>Ionic compound is almost always found as a solid because they have very tightly bound structures.

<span>3. Which of the following is not a characteristic of an ionic compound? 

</span><span>It is formed when atoms share electrons. 

</span>4. Covalent compounds are formed when 
<span>a nonmetal bonds with a nonmetal. 

</span><span>5. What is the relationship between a compound and the elements it is made from? 

</span>The compound may have properties that are very different from those of the elements.
3 0
4 years ago
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