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guajiro [1.7K]
3 years ago
6

Compared to the physical and chemical properties of the compound NO2, the compound N2O has

Chemistry
1 answer:
Lelu [443]3 years ago
8 0

Answer:

B

Explanation:

The two compounds have different physical properties and different chemical properties despite the fact that they are formed from nitrogen and oxygen.

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Determine the balanced chemical equation for this reaction.C8H18(g) O2(g)→CO2(g) H2O(g)Enter the coefficients for each compound
sashaice [31]

Answer:

2C₈H₁₈(g) + 25O₂(g)→16CO₂(g) + 18H₂O

Explanation:

To balance an equation, the moles of one element on one side of the equation should be the same as those on the other side of the equation. This is because (as a law of thermodynamics), in a chemical reaction, the matter is not destroyed nor created - atoms are only rearranged.

4 0
3 years ago
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Describe how light waves interact with the clothes you are wearing and your eyes.
Tom [10]

Answer:

You have read that EM waves can interact with a material medium in

the same ways that mechanical waves do. Three forms of interaction

play an especially important role in how people see light. One form is

reflection. Most things are visible because they reflect light. The two

other forms of interaction are transmission and absorption.

Transmission is the passage of an EM wave

through a medium. If the light reflected from objects did not pass

through the air, windows, or most of the eye, we could not see the

objects. Absorption is the disappearance of an

EM wave into the medium. Absorption affects how things look, because

it limits the light available to be reflected or transmitted.

6 0
3 years ago
Does volume alone determine whether an object will float or sink?
Reil [10]

Answer:

no volume does not

Explanation:

6 0
2 years ago
Calculate the number of C, H, and O atoms in 1.75 g of squaric acid
strojnjashka [21]
As far as I remember, the needed formula for squaric acid is C4H2O4.
According to this one mole should be  114.06 g., which means we have <span>0.015mol of this acid.
Then we can  easly calculate : </span><span>4(0.015) = 0.06 mol for both for Carbon and Oxygen and </span><span>0.03 mol of Hydrogen.
</span><span>To get more clear answer, we multiply by avogadros : 
</span><span>6.022 x 10^23. Hope everything is clear! regards</span>
4 0
3 years ago
If a hair gets into food, it could be introducing ___________ contamination into the food
horrorfan [7]

If a hair gets into food, it could be introducing physical contamination into the food

<h3>Further explanation </h3>

Food is substance consumed to provide nutritional support for an organism. Food makes your body work, grow and repair itself.

Contamination is the presence of a constituent, impurity that soils, corrupts, infects, makes unfit, or makes inferior a material, physical body, natural environment, workplace

Here are the four types of contaminants:

  1. Biological: Examples include bacteria, viruses, parasites, fungi, and toxins from plants, mushrooms, and seafood.
  2. Physical: Examples include foreign objects such as dirt, broken glass, metal staples, and bones.
  3. Chemical: Examples include cleaners, sanitizers, and polishes.
  4. Cross: Cross-contamination takes place when pathogens are transported from any object that we use in the kitchen. Examples include dirty kitchen clothes, unclean utensils, pests, raw food storage can lead to cross-contamination

Physical contamination happens when actual objects contaminate foods.   Human Hair is one of the physical contaminants in food along with stones, metal pieces, insect parts, rodent droppings, glass, metal, pests, jewellery, dirt and fake nails, etc

<h3>Learn more</h3>
  1. Learn more about physical contaminants brainly.com/question/1496160
  2. Learn more about hair  brainly.com/question/10022083
  3. Learn more about contamination brainly.com/question/4493120

<h3>Answer details</h3>

Grade:  9

Subject:  chemistry

Chapter:  food

Keywords:    physical contaminants, food, contamination, hair, contaminants

5 0
3 years ago
Read 2 more answers
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