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
professor190 [17]
2 years ago
13

How to tell the difference between a physical and chemical change

Chemistry
1 answer:
eimsori [14]2 years ago
7 0

Answer:

In a physical change the appearance or form of the matter changes but the kind of matter in the substance does not. However in a chemical change, the kind of matter changes and at least one new substance with new properties is formed.

Explanation:

You might be interested in
How many grams of a stock solution that is 92.5 percent H2SO4 by mass would be needed to make 250 grams of a 35.0 percent by mas
IrinaVladis [17]

94.6 g.  You must use 94.6 g of 92.5 % H_2SO_4 to make 250 g of 35.0 % H_2SO_4.

We can use a version of the <em>dilution formula</em>

<em>m</em>_1<em>C</em>_1 = <em>m</em>_2<em>C</em>_2

where

<em>m</em> represents the mass and

<em>C</em> represents the percent concentrations

We can rearrange the formula to get

<em>m</em>_2= <em>m</em>_1 × (<em>C</em>_1/<em>C</em>_2)

<em>m</em>_1 = 250 g; <em>C</em>_1 = 35.0 %

<em>m</em>_2 = ?; _____<em>C</em>_2 = 92.5 %

∴ <em>m</em>_2 = 250 g × (35.0 %/92.5 %) = 94.6 g

4 0
3 years ago
How many nitrogen atoms are in 4AgNO3
tensa zangetsu [6.8K]

Answer:

Silver/AG= 4

Nitrogen/N=4

Oxygen/O=12

Explanation:

6 0
3 years ago
Explain why beryllium is produced when potassium is heated with beryllium
Vladimir [108]

Explanation:

The more reactive element replaces less reactive element during chemical reaction.

Since, potassium is more reactive than beryllium. When potassium reacts with beryllium choride, it replaces beryllium and forms potassium chloride and produces beryllium.

3 0
3 years ago
The process of respiration is like a(n) __________.
algol13

Answer:

C. Combustion Reaction

Explanation:

Hope this helps!

8 0
3 years ago
How would you properly measure the mass of a liquid
MArishka [77]
You can consider the density of the water. Thus, in order to properly measure the mass of a liquid, we can first get the volume and density of the liquid material or substance. We can firstly utilize the formula to get the mass from deriving the set formula of density to mass: Since density is mass over the volume, <span><span>
1.  </span>D=m/v</span> <span><span>
2.  </span>We can transmute the formula to m = dv</span>
<span><span>3.  </span>Mass is density times the volume</span>



4 0
3 years ago
Other questions:
  • Boyle's law deals what quantities?
    7·2 answers
  • which components of an endothermic reaction have a higher heat content?-reactants-products-reaction vessel-water
    10·2 answers
  • Which is an acceptable Lewis structure for a diatomic nitrogen molecule?
    15·2 answers
  • 10.9010 has how many significant figures
    10·2 answers
  • What would be an example of a landform from magma?
    5·2 answers
  • PLEASE HELP!!!<br><br><br> Dhdjdhdjwjwnwisidjdnswnsjsjsksk
    14·1 answer
  • What is the value of the equilibrium constant at 25 oC for the reaction between the pair: I2(s) and Br-(aq) Give your answer usi
    13·1 answer
  • Uranium hexaflouride (UF6) has a triple point at (T, p) = (337 K,152 kPa). Suppose you have a (gaseous) sample of UF6 at atmosph
    7·1 answer
  • What makes the Noble Gases the least reactive elements on the periodic table?
    7·2 answers
  • Net ionic equation of HF(aq)+RbOH(aq)=H2O(l)+RbF(aq)
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!