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ddd [48]
3 years ago
12

According to the law of conservation of energy, the total amount of energy in the universe is Question 24 options: increasing de

creasing constant
Chemistry
1 answer:
GalinKa [24]3 years ago
7 0
<h3><u>Answer;</u></h3>

Constant

<h3><u>Explanation;</u></h3>
  • According to the law of conservation of energy, the total amount of energy in the universe is constant.
  • The law of Conservation of Energy states that Energy cannot be created or destroyed. The total amount of energy in the universe never changes, although it may change from one form to another.
  • Energy never disappears, but it does change from one form to another. For example; when we eat our food has stored energy in it.
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Does this equation obey the law of conservation of mass: 2Z + 2HCI ➡️ ZnCI2 + H2​
MAXImum [283]

Answer:

2Zn + 2HCI ➡️ ZnCI2 + H2​

LHS of equation

Z = 2

H = 2

Cl = 2

RHS of equation

Zn = 1

Cl =2

H =2

as Zn is not equal in number of atoms on both sides of the equation, the equation does not obey the law of conservation of mass

Explanation:

the law of conservation mass states that the mass of an isolated system cannot be created nor destroyed by any chemical reaction or physical transformation. thus, there must be an equal number of atoms of an element present on both sides of the equation.

5 0
3 years ago
Water’s unique properties, high heat capacity, high density, solid phase less dense than liquid phase can be attributed to
Xelga [282]

Answer:

B- The polarity of the molecules and hydrogen bonding between molecules.

Explanation:

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4 0
2 years ago
What are three ways that magma can form
ankoles [38]
<span>The three ways magma can form are when rock is heated, when pressure is released, and when the composition of the rock changes. The temperature of magma is 1300-2400F. Magma collects in magma chambers under the earth's surface, and can be come to the surface in the form of lava.</span>
3 0
3 years ago
Which describes the composition of carbohydrates?
UkoKoshka [18]

Answer: Carbohydrates (carbo- = “carbon”; hydrate = “water”) contain the elements carbon, hydrogen, and oxygen, and only those elements with a few exceptions. The ratio of carbon to hydrogen to oxygen in carbohydrate molecules is 1:2:1.

HOPE THIS HELPS

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3 0
2 years ago
A metal cylinder has a mass of 128g. When the cylinder is submerged into water, it displaces 424ml of water. Calculate the speci
Colt1911 [192]
First, we will need to find the density of the object, take the mass and divide it by the dispplaced water:
128/424 = 0.302 grams/milliliters 
Convert that to kg/m3
We get: 302kg/m3
Divide that to the density of water: 1000kg/m3
302/1000 = 0.302 
(thats a pretty darn light weighted metal)

7 0
3 years ago
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