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ipn [44]
3 years ago
14

Question 1(Multiple Choice Worth 50 points)

Chemistry
2 answers:
irinina [24]3 years ago
7 0

Answer:

because it's shellfish

Explanation:

A slipper

weqwewe [10]3 years ago
7 0

Answer:

Direct-air capture

Explanation:

To understand the technology I'm about to explain, I'll model it to something familiar. As you know, the process of  photosynthesis is where trees and plants use sunlight, water, and carbon dioxide to create energy for themselves, and release oxygen as a byproduct. Direct- air capture is exactly like this. Its pulls in air and then through a range of similiar chemical reactions, it extracts the carbon dioxide from it while returning the rest of the air to the surrounding environment. Except, the Direct-air capture does this at a much faster rate than nature does. The direct-air capture uses a ginormous fan that pulls air in which then passes over plastic surfaces that have potassium hydroxide solutions covered over them. The potassium hydroxide solution chemically binds with the carbon dioxide molecules, removing them from the air and trapping them in the liquid solution as a carbonate salt. The carbon dioxide is then contained where it is compressed and purified and then stored for later use.

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As shown
lord [1]

c2 is a Air that you break

3 0
2 years ago
A compound is 2.00% H by mass, 32.7% S by mass, and 65.3% O by mass. What is its empirical formula? The second step is to calcul
Free_Kalibri [48]
Lets take 100 g of this compound,
so it is going to be 2.00 g H, 32.7 g S and 65.3 g O.

2.00 g H *1 mol H/1.01 g H ≈ 1.98 mol H
32.7 g S *1 mol S/ 32.1 g S ≈ 1.02 mol S
65.3 g O * 1 mol O/16.0 g O ≈ 4.08 mol O

1.98 mol H : 1.02 mol S : 4.08 mol O = 2 mol H : 1 mol S : 4 mol O

Empirical formula
H2SO4
8 0
3 years ago
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What do helium (He), neon (Ne), and argon (Ar) have in common?
IrinaK [193]

Answer:

The answer is: D

Explanation:

A. They have the same number of electron energy shells.  Is false, all the elements are in different periods so, they have different number of lectron energy shells.

B. They are all Halogens.  No, is wrong, halogens are F, Cl ,Br

C. They have the same number of electrons.  is wrong, if they had the same number of electrons they must be they same element and they aren't the same.

D. They are all Noble gases. Yes, it's true they are noble gases, they are the first group in the periodic table from the right.

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3 years ago
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What happened to the salt molecules when they were added to cold water
Nimfa-mama [501]
Cooler water molecules are denser than warm water and will not allow much of the salt to dissolve
8 0
3 years ago
1. Which of these is not an example of a community? the members of the local Veterans of Foreign Wars individuals who belong to
Natali5045456 [20]

Answer:

1. Which of these is not an example of a community? an individual who is raising money for cancer research THERE IS NO SUCH THING AS A ONE PERSON COMMUNITY

2. What are folkways? the social customs that teach an individual how to act within a group. FOLKWAYS ARE PART OF OUR CULTURE

3. Which term is associated with this scenario? The governor announces a new program that is designed to improve the algebra scores of ninth-grade students. institution THE ANNOUNCE APPLIES TO ALL HIGH SCHOOLS AND WAS MADE BY AN ELECTED AUTHORITY

4. Which of these statements is true? The family is the main source of socialization in a society. FAMILY IS THE BASIS OF SOCIETY  

5. What are mores? the serious prohibitions against deviant behavior in a society that result in severe punishment MORES ARE VERY STRICT SOCIAL NORMS

6. What are laws? the protection of all people within a society EVERYBODY SHOULD BE EQUALLY PROTECTED UNDER THE LAW

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3 years ago
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