1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
DanielleElmas [232]
3 years ago
9

If a substance changes its shape and size, is it a physical or chemical change? - chemical - physical - both

Chemistry
1 answer:
Alex3 years ago
4 0
Physical. chemical only applies when it undergoes a reaction
You might be interested in
Write and balance an equation for the following reaction. Identify the type of reaction.
Strike441 [17]

Answer: Synthesis/ Combination

reaction

4 Al + 3S2 => 2 Al2S3

Explanation: The equation is now balanced the amount of each individual atom in both the reactant and product sides are equal.

8 0
3 years ago
PLEASE help!!
Alina [70]

Answer:

<h3>KBr + I- ---------> KI + Br-</h3>

Explanation:

Single Displacement reaction is a chemical Reaction in which one element in the salt is replaced with another element

for example,

A-B + C -------> A-C + B

electropositive replaces only electropositive elements from compound. same is true for electronegative element

in first reaction I being electro negative replaces Br from KBr so this is a single displacement reaction

5 0
3 years ago
Chemists can use moles to calculate: A. How much of the products are needed and how much reactant will be made. B. How much prod
damaskus [11]

Answer:

c.- How much of the reactants are needed and how much product will made.

Explanation:

The moles is the matter unit used in chemistry to simplify  some calculations, instead of using grams. Also the moles are very useful because the chemical reaction can be balanced.

When a Chemical reaction is balanced, then it can be easily to calculate how many moles are necessary to add in a process to obtain a quantity of grams of a product.

5 0
3 years ago
Need these 2 answered asap pls
Kitty [74]

Answer:

im not a brain wiz but i think 20

Explanation:

3 0
2 years ago
When a substance is in the process of changing phases states of matter what happens to the temperature
Reptile [31]

Answer:

Temperature stays constant.

Explanation:

During a phase change, the temperature does not change. Temperature will only change when a phase change is completed.

8 0
2 years ago
Other questions:
  • What volume will 50.2 grams of co2 (g) occupy at stp?
    8·1 answer
  • Name one gas that can form when the carbon in coal burns! And describe its harmful effects
    12·1 answer
  • Find the density, in g/cm3, of a metal cube with a mass of 50.3 g and an edge length (l) of 2.65 cm. The volume (V) of a cube is
    12·1 answer
  • 5 Points
    6·2 answers
  • Cobalt III hydroxide and nitric acid react according to the following balanced equation:
    7·1 answer
  • A student has a sample of a solid dissolved in a liquid. The task is to separate the mixture into its pure components. What ques
    13·2 answers
  • Pls help me out!! lol
    14·1 answer
  • A balloon at sea level on earth (1 atm pressure, 19°C) takes up 14.5 L of space. The balloon travels to Mars where atmospheric p
    14·1 answer
  • Name the type of reaction involved in the conversation of ethanol to Ethan​
    13·1 answer
  • Calculate the pH during the titration of 20.00 mL of 0.1000 M dimethylamine, (CH3)2NH(aq), with 0.1000 M HCl(aq) after 21.23 mL
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!