An experiment applies heat to a substance and produces a gas that is a new and different substance. Choose the true statement.A. This represents a physical change only.
B. This represents a chemical change only.
C. This represents both a physical and a chemical change.
D. This represents neither a physical change nor a chemical change.

Answers

Answer 1

Answer: I believe it is C; reasoning being that the hint for physical change is," the producing of a gas," chemical "that's new and diff. substance. "

Related Questions

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In Organic Chemistry, what does the letter "X" represent?a. a hydrogen c. a carbon b. a halogen d. an alkane
When 5 grams of KCl are dissolved in 50. grams of water at 25°C, the resulting mixture can be described as(1) heterogeneous and unsaturated(2) heterogeneous and supersaturated(3) homogeneous and unsaturated(4) homogeneous and supersaturated
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The universe is mostly made up of what?

Answers

the universe is made mostly of empty space nothing else even close.

Then there will be an increase in the demand for most goods.If there is an increase in
А consumer price
B. production cost
C. quantity supply
D. consumer income
Please select the best answer from the choices provided
OA
OB
С
&
D

Answers

Answer:

d)consumer income

Explanation:

Answer:

D. consumer income

Explanation:

Edge 2020

Why the radius of an atom cannot be determined precisely ?

Answers

The radius of an atom cannot be determined precisely because the atomic number would or might have an isotope. The results won't be accurate.

A sample of gas in a balloon has an initial temperature of 2.0 ∘C and a volume of 1.53×103 L . If the temperature changes to 99 ∘C , and there is no change of pressure or amount of gas, what is the new volume, V2, of the gas?

Answers

(V1/T1)=(V2/T2) this is Charles' law where T is in Kelvin
So: (1.53x10^3)/(275K) = V2/(372K)
V2= 2.07x10^3L

Which of the following reactions produce oxygen gas? Anaerobic respiration

Photosynthesis

Aerobic respiration

Fermentation

Answers

The correct answer is photosynthesis. Photosynthesis is the process in plants to make their food. This involves the use carbon dioxide to react with water and make sugar or glucose as the main product and oxygen as a by-product.

List down the types of intermolecular forces that exist between molecules (or basic units) in the species given below: (a) benzene (C6H6), (b) CH3Cl, (c) PF3, (d) NaCl, (e) CS2

Answers

(a) benzene (C6H6) - nonpolar molecules . Only dispersion forces are present.

(b) CH3Cl - Chloroform ; polar molecules. Both dispersion and dipole-dipole forces are present.

(c) PF3 - Phosphorus triflouride ; has polar bonds but has nonpolar molecule due to its symmetrical structure. Only dispersion forces are present.

(d) NaCl - Sodium chloride ; ionic compound. Both ion-ion and dispersion forces are present.

(e) CS2 - Carbon disulfide ; nonpolar molecules. Only dispersion forces are present.

Other Questions

sodium chloride and glucose both are soluble in water but the solubility of NaCl is greater then glucose why.

An unknown metal is very reactive; it reacts violently with water and must be stored in a moisture-free environment. It is solid at room temperature. Which group does the metal likely belong to?

A particle has 5 protons, 6 neutrons, and 5 electrons. What is its net charge.

solution of silver chloride at constant temperature: AgCl(s) ↔ Ag+(aq) + Cl-(aq) As NaCl(s) is dissolved in the solution, the concentration of the Ag+ ions in the solution 1. decreases, and the concentration of Cl- ions increases 2. decreases, and the concentration of Cl- ions remains the same 3. increases, and the concentration of Cl- ions increases 4. increases, and the concentration of Cl- ions remains the same