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2 years ago

What makes matter change from one state to another?

Chemistry

1 answer:

posledela2 years ago

4 0

Answer: Adding or removing energy from matter

Explanation:

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When copper metal is added to silver nitrate in solution, silver metal & copper (ii) nitrate are produced. What mass of silv

Harrizon [31]

Answer:

$\large \boxed{\text{339 g}}$

Explanation:

We will need a balanced chemical equation with masses and molar masses, so, let's gather all the information in one place.

MM: 63.55 107.87

Cu + 2AgNO₃ ⟶ Cu(NO₃)₂ + 2Ag

m/g: 100

(a) Moles of Cu

$\text{Moles of Cu} = \text{100 g Cu }\times \dfrac{\text{1 mol Cu}}{\text{63.55 g Cu}}= \text{1.574 mol Cu}$

(b) Moles of Ag

$\text{Moles of Ag} = \text{1.574 mol Cu} \times \dfrac{\text{2 mol Ag}}{\text{1 mol Cu}} = \text{3.147 mol Ag}$

(c) Mass of Ag

$\text{Mass of Ag} =\text{3.147 mol Ag} \times \dfrac{\text{107.87 g Ag}}{\text{1 mol Ag}} = \textbf{339 g Ag}\\\\\text{The reaction produces $\large \boxed{\textbf{339 g}}$ of Ag}$

6 0

4 years ago

Where does transcription occur and why does it occur there

butalik [34]

Answer:

Transcription takes place in the nucleus

Explanation:

it uses dna as a template to make an rna molecule. rna then leaves the nucleus and goes to ribosome in the cytoplasm, where translation occurs translation reads the genetic code in mrna and makes a protein.

3 0

3 years ago

Read 2 more answers

PLZ help, I'm really behind in school! I will mark brainliest for correct answers!

ANEK [815]

Answer:

Gravitational force is given by:

F=G×

m×M

Distance between two masses is increased s.t. new distance is D= 5 d

New gravitational force F

Let on of the mass is changed to m

so as to maintain the same gravitational force.

4 0

3 years ago

Read 2 more answers

If 1 atom of sulfur combines with 2 atoms of oxygen to form sulfur dioxide, what is the ratio of mass of sulfur atom to mass of

Andrew [12]

Answer: The ratio of mass of sulfur atom to mass of oxygen atom in sulfur dioxide is 1: 1.

Explanation:

Law of constant proportion states that In a chemical substance the elements are always present in definite proportions by mass. This law is also known as 'Law of definite proportions '.

Mass of 1 atom of sulphur = 32 g

Mass of 1 atom of oxygen = 16 g

Mass of 2 atoms of oxygen = $16g\times 2=32g$