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Sever21 [200]
3 years ago
13

Which process is a chemical change

Chemistry
2 answers:
hichkok12 [17]3 years ago
5 0
The process of a chemical change is when it occur when a substance called chemical synthesis or alternatively chemical decomposition into two or more different substances
Airida [17]3 years ago
5 0

Answer:

Loss of atmospheric ozone

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99 POINTS!!! PLEASE HELP
igor_vitrenko [27]

How do chemical sedimentary rocks form?


Options: heat and pressure, evaporation of shallow sea water, layering of fossil sediments, colliding mountains.


The answer is evaporation of shallow sea water.

 

Gneiss is a metamorphic rock that is formed when granite is subjected to extreme heat and pressure. This occurs in when:


Options: shallow seas evaporate mountains, collide fossil sediments form layers, magma cools and hardens underground


The answer is magma cools and hardens underground.

8 0
3 years ago
Study the diagram about the varying pressures of Earth’s Layers.
melomori [17]

Answer:

A) Outer core

Explanation:

just took the test

3 0
3 years ago
Read 2 more answers
Group 2A metal oxides react with water to produce hydroxides. When 35.55 g of CaO are placed into 125 mL of water (d= 1.000 g/mL
Vika [28.1K]
Answer is: mass of calcium hydroxide is 46.98 grams.
Balanced chemical reaction: CaO + H₂O → Ca(OH)₂.
m(CaO) = 35.55 g.
n(CaO) = m(CaO) ÷ M(CaO).
n(CaO) = 35.55 g ÷ 56 g/mol.
n(CaO) = 0.634 mol; limiting reactant.
m(H₂O) = 125 mL · 1.000 g/mL.
m(H₂O) = 125 g.
n(H₂O) = 125 g ÷ 18 g/mol.
n(H₂O) = 6.94 mol.
From chemical reaction: n(CaO) : n(Ca(OH)₂) = 1 : 1.
n(Ca(OH)₂) = 0.634 mol.
m(Ca(OH)₂) = 0.634 mol · 74.1 g/mol = 46.98 g.
5 0
3 years ago
Which is the molar mass of BF3?
anygoal [31]
Boron trifluoride/Molar mass
67.81 g/mol
3 0
3 years ago
Read 2 more answers
The bowl of fruit has a mass of 2.2 kg.
AURORKA [14]

Taking into account the Newton's second law, the correct answer is option A. F = 9.68 N right

In first place, acceleration in a body occurs when a force acts on a body.

Newton's second law states that a force will change the speed of an object because the speed and/or direction will change. These changes in velocity are called acceleration.

So, Newton's second law defines the relationship between force and acceleration mathematically. This law says that the acceleration of an object is directly proportional to the sum of all the forces acting on it and inversely proportional to the mass of the object

Mathematically, Newton's second law is expressed as:

F= m×a

where:

  • F = Force [N]
  • m = Mass [kg]
  • a = Acceleration [m/s²]

In this case, you know:

  • F= ?
  • m= 2.2 kg
  • a= 4.4 m/s²

Replacing in Newton's second law:

F= 2.2 kg× 4.4 m/s²

Solving:

<u><em>F= 9.68 N</em></u>

Finally, As the bowl of fruit accelerates to the right, the correct answer is option A. F = 9.68 N right

Learn more about the Newton's second law:

brainly.com/question/23845187?referrer=searchResults

brainly.com/question/13959891?referrer=searchResults

6 0
2 years ago
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