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Firdavs [7]
3 years ago
13

Is it worth it? In other words, will the benefits we receive from an action be worth the costs? The process of weighing these de

cisions is called a . For example, if an organization wants to remove 10 acres of forest to build a mall they must look at the (money and resources needed) versus the (what will the mall bring). Often, there are also unwanted or unknown consequences, or , of an action. These can be positive, such as the mall intends to have a recycling program. Others can be negative, such as the for a native songbird.
Chemistry
1 answer:
diamong [38]3 years ago
7 0

Answer: I need the answer

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Significant Figures For 7.06 × 10^5 ÷ 5.3 × 10^-2
Kay [80]

Answer:

\boxed{\text{two}}

Explanation:

In multiplication  and division problems, your answer can have no more significant figures than the number with the fewest significant figures.

\dfrac{7.06 \times 10^{5}}{5.3 \times 10^{-2}}= 1.332 075 472 \times 10^{7} (by my calculator)  

There are three significant figures in 7.06 and two in 2.3.

You must round to \boxed{\textbf{two}} significant figures and report the answer as 1.3 × 1.0⁷.

4 0
3 years ago
Your pupil opens and closes automatically in response to light.what part of your nervous system controls this response
solong [7]
The brain controls it
6 0
3 years ago
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A plastic rod becomes negatively charged when it is rubbed with a piece of wool. how does the rod become charged?
Lera25 [3.4K]

Answer;

c.electrons move from the wool to the rod.

Explanation;

-Atoms are generally neutral (have the same number of protons as electrons). Substances lose electrons to become positively charged, while other substances gain electrons to become negatively charged.

-When a plastic rod is rubbed with woolen cloth or wool, a transfer of electrons occurs (from the wool to the rod). The rod gains electrons; thus, it is negatively charged.

4 0
4 years ago
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The molar heat of vaporization of hydrogen fluoride (HF) is 31.18 kJ/mol. How much heat is released when 100.0 g HF condenses at
mash [69]

the answer is -155.8


8 0
3 years ago
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If 30.0 g of H2SO4 reacts with 30.0 g of sodium chloride, how many grams of hydrogen chloride are produced
koban [17]

Answer:

HCl=18.7g.

Explanation: First, we ensure that the equation is balanced. Then, we convert the given grams to moles of reactant.

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3 years ago
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