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
HACTEHA [7]
3 years ago
9

What are five primary signs of a chemical change

Chemistry
1 answer:
MissTica3 years ago
5 0
1) size 
2) shape 
3)odor 
4)state  
5)form 
This is from my knowledge please make sure to check it before learning it. 
You might be interested in
What is the largest number of atoms a carbon atom can bond to with all single bonds
ICE Princess25 [194]
4 total bonds if u have double,or triple then subtract from 4
3 0
3 years ago
1. Sodium hydroxide reacts with carbon dioxide according to the equation: 2NaOH(s) + CO2(g) →
Leno4ka [110]

The limiting reagent when 5 g of NaOH and 4.4 g CO₂  allowed to react will be NaOH

<h3>What is Limiting reagent ?</h3>

The limiting reactant (or limiting reagent) is the reactant that gets consumed first in a chemical reaction and therefore limits how much product can be formed.

Given chemical equation in balanced form ;

2NaOH(s) + CO₂(g) → Na₂CO₃(s) + H₂O(l).

According to the Chemical equation ;

  • The limiting reagent when 5 g of NaOH and 4.4 g CO₂  allowed to react will be NaOH

    If 44 g CO₂ requires 80 g of NaOH, therefore, 4.4 g CO₂ will require atleast 8 g of NaOH.

    But the available quantity is 5 g NaOH. thus, NaOH is the Limiting reagent.

  • 6.625 g of Na₂CO₃ are expected to be produced 5.0 g of NaOH and 4.4 g of CO₂ are allowed to react

    As 80 g NaOH produces 106 g of Na₂CO₃.

    Therefore 5 g NaoH will produce ;

    106 / 80 x 5 = 6.625 g

Learn more about limiting reagent here ;

brainly.com/question/11848702

#SPJ1

5 0
1 year ago
Only purple flowers result from a cross between purple-flowered pea plants and white-flowered pea plants. What does this indicat
qwelly [4]

Answer:

Purple flowers are dominant

Explanation:

5 0
3 years ago
Chlorine is used by textile manufacturers to bleach cloth. Excess chlorine is destroyed by its reaction with sodium thiosulfate,
harina [27]
Na2S2O3(aq) + 4Cl2( g) + 5H2O = 2NaHSO4(aq) + 8HCl(aq)

1)How many moles of HCl can form from 0.21 mol of Cl2?
0.21 mol Cl2 ( 8 mol HCl / 4 mol Cl2 ) = 0.42 mol HCl

2)How many moles of H2O are required for the reaction of 0.18 mol of Cl2?
0.18 mol Cl2 ( 5 mol H2O / 4 mol Cl2 ) = 0.225 mol H2O

3)How many moles of H2O react if 0.50 mol HCl is formed?
0.50 mol HCl ( 5 mol H2O / 8 mol HCl ) = 0.3125 mol H2O
6 0
3 years ago
Juan ran 0.5 kilometers and Maria ran 600 meters. Who ran farther?
Setler79 [48]
0,5 kilometers = 500 metres
500<600
Maria ran farther
8 0
3 years ago
Other questions:
  • Jack researched J.J. Thomson’s experiments. Read Jack’s summary below and find the error.
    14·1 answer
  • What is the mass of a box of nails
    8·1 answer
  • PLEASE HELP I WILL NAME BRAINLIEST TO WHOEVER GETS IT RIGHT!!!
    12·2 answers
  • The adrenal glands respond to______
    6·1 answer
  • stomach acid contains dilute hydrochloric acid write a chemical equation to show the neutralization of stomach acid by milk of m
    9·1 answer
  • I WILL GIVE BRAINLEST ANSWER THOSE THREE QUESTIONS PLZZZZ HELP ME
    12·1 answer
  • Can I have Help? please
    13·2 answers
  • I need more help please with all of these problems
    7·1 answer
  • Having the same number of protons and electrons results in a positively charged atom.
    6·1 answer
  • What is the frequency of yellow light, which has a wavelength of 5.56 x 10^-7 m?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!