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Sergeeva-Olga [200]
3 years ago
9

HELP ME PLEASE PLEASE PLEASE IM TAKING A TIMED TEST

Chemistry
2 answers:
cricket20 [7]3 years ago
4 0

Answer: oxygen

Explanation: trust me bro

iragen [17]3 years ago
3 0

Answer: I think it is silver

Explanation:

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xenn [34]

Answer:

The type of collision is A. Inelastic collision.

Explanation:

The macroscopic collisions are generally inelastic and do not conserve the kinetic energy, although of course the total energy is conserved. The inelastic collision is one in which the objects that collide remain together after the collision.

So, a figure skater skating across ice, who grabs another skater and brings him along the ice with her is a clear example of inelastic collision.

6 0
4 years ago
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A chemist adds of a M calcium sulfate solution to a reaction flask. Calculate the mass in grams of calcium sulfate the chemist h
Levart [38]

Answer:

1.23 g

Explanation:

<em>A chemist adds 1.55 L of a 0.00582 M calcium sulfate solution to a reaction flask. Calculate the mass in grams of calcium sulfate the chemist has added to the flask.</em>

Step 1: Given data

  • Volume of the solution (V): 1.55 L
  • Molar concentration of the solution (C): 0.00582 M (0.00582 mol/L)

Step 2: Calculate the moles (n) of calcium sulfate added

We will use the following expression.

n = C × V

n = 0.00582 mol/L × 1.55 L

n = 0.00902 mol

Step 3: Calculate the mass corresponding to 0.00902 moles of calcium sulfate

The molar mass of calcium sulfate is 136.14 g/mol.

0.00902 mol × 136.14 g/mol = 1.23 g

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3 years ago
NaHCO3 + HCI → NaCl + H₂O + CO₂
Rashid [163]

Answer: 14.34

Explanation:

5 0
1 year ago
How to build 6 individual atoms?
Andrew [12]

The 6 models of the atom:

1. John Dalton's atomic model: Daltons Billiard Ball (Solid Sphere) Model

2. J.J. Thomson's model: Plum Pudding model

3. Ernest Rutherford's model: Nuclear model

4. Niels Bohr's model: Planetary model

5. Erwin Schrdinger's model: Electron Cloud Model/Quantum Model

6. Wave mechanical model

<h3>Atom</h3>

The smallest component that makes up a chemical element is an atom. Atoms that are neutral or ionized are the building blocks of all solids, liquids, gases, and plasma. A normal atom is 100 picometers across, which is incredibly small. Because of quantum effects, they are so small that it is impossible to predict their behavior with sufficient precision using classical physics, as if they were, say, tennis balls. One or more electrons are attached to the nucleus of every atom, which is made up of a nucleus. Protons and neutrons, in various numbers, make up the nucleus. Neutrons exist only in the most prevalent type of hydrogen. An atom's nucleus makes up more than 99.94% of its mass.

how to build 6 individual atoms?

Learn more about atom here:

brainly.com/question/1566330

#SPJ1

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2 years ago
After World War I, senators who opposed United
kirza4 [7]
After World War I, senators who opposed United <span>States participation in the League of Nations argued that American membership in the organization would "</span><span>(4) involve the nation in future world conflicts"</span>
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