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3 years ago

What is a closed container in relation to the law of conservation of mass

1 answer:

5 0

The law of conservation of mass states that mass in an isolated system is neither created nor destroyed by chemical reactions or physical transformations.

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What is always conserved in both physical and chemical changes, explain?

bonufazy [111]

All chemical reactions are chemical changes. The Law of Conservation of Matter states that matter cannot be created or destroyed. In a physical change, substances can change form, but the total mass remains the same. In a chemical change, the total mass of the reactants always equals the total mass of the products.

3 0

3 years ago

The word “covalent” can be broken into two parts: “co” and “valent.” The “co” part means

Setler79 [48]

Answer:

Outer electrons.

Explanation:

All bonds are localized bonds formed between two atoms by the donation of electrons from each atom.

4 0

3 years ago

Carbon dioxide gas is collected at 27.0(degrees)C in an evacuated flask with a measured volume of 30.0L. When all the gas has be

White raven [17]

Answer:

Moles of carbon dioxide gas is 0.584 moles.

Mass of 0.584 moles of carbon dioxide gas is 25.7 g

Explanation:

Using ideal gas equation

PV = nRT

where,

P = Pressure of gas = $0.480 atm$

V = Volume of gas = 30.0 L

n = number of moles of gas = ?

R = Gas constant = 0.0821 L.atm/mol.K

T = Temperature of gas = 27°C = 300.15 K

Putting values in above equation, we get:

$(0.480 atm)\times 30.0 L=n\times (0.0821L.atm/mol.K)\times 300.15K\\\\n=0.5844 mol\approx 0.584$

Moles of carbon dioxide gas = 0.584 moles

Mass of 0.584 moles of carbon dioxide gas = 0.584 mol × 44 g/mol = 25.69 g ≈ 25.7 g

5 0

3 years ago

Name the following Ionic Compound: Fe2O3 (I believe this is Iron (III) Oxide)

svet-max [94.6K]

It is Iron 2 (Fe2) and Oxygen 3 (O3). Hope this helps!

4 0

4 years ago

Read 2 more answers

Explain the process of initiation and elongation.

Alina [70]

Initiation occurs when mRNA, tRNA, and an amino acid meet up inside the ribosome. Elongation occurs when amino acids are continually added to the line, forming a long chain bound together by peptide bonds.

4 0

4 years ago