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Lady bird [3.3K]
3 years ago
14

7. A student weighed an empty graduated cylinder and found that it had a mass of

Chemistry
1 answer:
nasty-shy [4]3 years ago
8 0

Answer:

easy bro. So i also don't know.

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it takes a slug 20 minutes to travel from the grass to the trash can a trip of 15 meters. how far could the slug travel in 60 mi
bekas [8.4K]

Answer:

45 meters

Explanation:

Did the math

6 0
3 years ago
Frank pulls down on a garage door with a force of 80 N. If the door weighs 210 N, what is the net downward force on the door?
elena-s [515]

Answer:

290 N

Explanation:

Total downward force = Force applied on the door in bringing it down + weight of the door

Total downward force = 80 + 210

Total downward force = 290N

7 0
4 years ago
Read 2 more answers
Food dye allergies have increased in recent years. One study calculated that each 47.9 g serving of M&M's candy contains 240
77julia77 [94]

Answer:

Mass percent of food dyes  = 0.0616%

Explanation:

Given data:

Mass of candy = 47.9 g

Calories = 240

Mass of fat = 10 g

Mass of carbohydrate = 34 g

Mass of protein = 2 g

Mass of food dyes = 29.5 mg

Mass percent of food dyes = ?

Solution:

First of all we will convert the mg into g.

Mass of food dyes = 29.5 mg × 1g /1000 mg = 0.0295 g

Mass percent of food dyes  = mass of food dyes / total mass× 100

Now we will put the values.

Mass percent of food dyes  = 0.0295 g / 47.9 g × 100

Mass percent of food dyes  =  0.000616 × 100

Mass percent of food dyes  = 0.0616%

3 0
4 years ago
All the following ions have the same charge except Group of answer choices oxide. monohydrogen phosphate. peroxide. permanganate
Triss [41]

All the given species have the same charge except peroxide.

<h3>Charges on ions</h3>
  • The charge on monohydrogen phosphate is negative because of its formula, [HPO4]^{2-}.

  • The charge on permanganate is negative. The formula is MnO^-

  • The charge of oxide (O^{2-}) is negative.

  • The charge on peroxide is ( R−O−O−R) is neutral.

  • The charge on oxalate, C2O4^{2-}, is negative.

Thus, only peroxide is unique.

More on charges on ions can be found here: brainly.com/question/11938054

#SPJ3

4 0
2 years ago
State the type of bonding—ionic, covalent, or metallic—you would expect in each:<br> (b) MgCl₂(s);
IceJOKER [234]

MgCl2 is an ionic compound because chemical bonds in the molecule are formed by the transfer of electrons among Mg and Cl atoms.

<h3>What is chemical bond ?</h3>

A chemical bond is a strong bond that can be formed between atoms, ions, or molecules to create chemical compounds. The bond may be created by the sharing of electrons in covalent bonds or by the electrostatic attraction of two oppositely charged ions, as in ionic bonds. Covalent, ionic, and metallic bindings are examples of "strong bonds" or "primary bonds," whereas dipole-dipole interactions, the London dispersion force, and hydrogen bonding are examples of "weak bonds" or "secondary bonds."

The positively charged protons in the nucleus and the negatively charged electrons in its orbit are attracted to one another by the basic electromagnetic force.

To learn more about chemical bonds from the given link:

brainly.com/question/819068

#SPJ4

3 0
2 years ago
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