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vesna_86 [32]
3 years ago
10

A blank is a substance that is made by combining two substances

Chemistry
1 answer:
Simora [160]3 years ago
7 0
Do you mean; " A blank is a substance that is made by combining two elements?" (I'm not sure if substances is the right term)

If so then the blank is a compound. 
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What is meant by chemical combination? what are the laws of chemical combination?​
balu736 [363]

Answer:

In simple terms, this law states that matter can neither be created nor destroyed. In other words, the total mass, that is, the sum of the mass of reacting mixture and the products formed remains constant.

Explanation:

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7 0
3 years ago
How did the nucleus evolve through time?
Tems11 [23]

Answer:

The nucleus represents a major evolutionary transition. As a consequence of separating translation from transcription many new functions arose, which likely contributed to the remarkable success of eukaryotic cells. Here we will consider what has recently emerged on the evolutionary histories of several key aspects of nuclear biology; the nuclear pore complex, the lamina, centrosomes and evidence for prokaryotic origins of relevant players.

4 0
3 years ago
Why does your finger seem to move? How is this related to the parallax of stars?
sleet_krkn [62]
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3 0
3 years ago
A balloon has a pressure of 3.1 atm at a volume of 155 ml. if the temperature is held constant, what is the volume (ml) if the p
GarryVolchara [31]

Answer:

45.8 mL

Explanation:

If all variables are held constant, the new volume can be found using the Boyle's Law equation. The equation looks like this:

P₁V₁ = P₂V₂

In this equation, "P₁" and "V₁" represent the initial pressure and volume. "P₂" and "V₂" represent the final pressure and volume. You can find the new volume by plugging the given values into the equation and simplifying.

P₁ = 3.1 atm                        P₂ = 10.5 atm

V₁ = 155 mL                       V₂ = ? mL

P₁V₁ = P₂V₂                                                 <----- Boyle's Law equation

(3.1 atm)(155 mL) = (10.5 atm)V₂                <----- Insert values

480.5 = (10.5 atm)V₂                                  <----- Multiply 3.1 and 155

45.8 = V₂                                                    <----- Divide both sides by 10.5

4 0
2 years ago
Select all of the factors that influence GRAVITATIONAL potential energy (Lesson 3.10):
azamat

Answer:

C) Mass

E) Distance from ground

Explanation:

The factors that influence the gravitational potential energy are mass and distance from the ground or height.

Gravitational potential energy is potential energy of a body in relation to that of another under the influence of gravity.

  Mathematically;

      Gravitational potential energy  = mgh

where m is the mass

           g is the acceleration due to gravity

           h is the height

7 0
3 years ago
Read 2 more answers
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