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
Nataly_w [17]
2 years ago
5

The only sure evidence for chemical reaction is

Chemistry
2 answers:
3241004551 [841]2 years ago
8 0
...Is that one or more new substances are produced
omeli [17]2 years ago
3 0
When things explode
You might be interested in
If you are 5 foot 10 inches, how tall are you in meters? Meters ( write you answer 4 significant figures e.g. 2.852)
horsena [70]
5 foot 10 inch = 1.55448 meter
3 0
3 years ago
A different mass of sodium hydroxide was used to make another 25.0 cm' solution.
Dmitriy789 [7]

0.003 moles of NaOH was used in the titration.

<h3>What is titration?</h3>

The concentration of an identified analyte can be found using a simple laboratory technique called titration. As a standard solution with a given concentration and volume, a reagent known as the titrant or titrator is created.

By using a solution with a known concentration to measure the concentration of an unknown solution, this process is known as titration. To a known volume of the analyte (the unknown solution), the titrant (the known solution) is typically added from a buret until the reaction is finished. To ascertain the unknown concentration of an identifiable analyte, titration, commonly referred to as titrimetry, is a widely used quantitative laboratory analytical technique (Medwick and Kirschner, 2010). Volume measurements are a crucial component of titration

Concentration in mol/dm3 =

Amount of solution mol

= concentration in mol/dm3 × volume in dm3

Amount of sodium hydroxide

= 0.100 × 0.0250

= 0.00250 mol

To know more about titration, visit:

brainly.com/question/27394328

#SPJ9

6 0
1 year ago
Which statement best explains why calcium has a larger atomic radius than magnesium? A. Calcium has a stronger nuclear charge th
ahrayia [7]

Answer:

B. calcium has electrons in more energy levels than magnesium

Explanation:

atoms are made of three types of subatomic particles - electrons, protons and neutrons.

Neutrons and protons reside in the nucleus of the atom and electrons reside in energy shells

electronic configuration for both Ca and Mg are as follows

Mg - 2,8,2

Ca - 2,8,8,2

outermost energy shell of Mg with electrons is the third energy level

whereas outermost energy shell of Ca with electrons is the fourth energy shell

therefore Ca has a larger atomic radius than Mg as it has one more energy shell than Mg in which electrons reside

7 0
3 years ago
Read 2 more answers
Which of the following organisms would likely be found on a decaying deer carcass (dead deer)?
TEA [102]

Answer:

c. bacteria and fungus

Explanation:

3 0
3 years ago
Read 2 more answers
in this cut-away image of an atom, where is the red arrow most likely pointed at the greatest probability of locating an electro
emmasim [6.3K]

Answer:

c

Explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • Consider four atoms from the second period: lithium, beryllium boron carbon and nitrogen which of these element has the lowest e
    14·2 answers
  • Determine the mass in grams of 3.00 × 10²¹ atoms of arsenic. (The mass of one mole of arsenic is 74.92 g.)
    11·1 answer
  • What process does the image show?
    7·1 answer
  • The __is (are) an example of a transform boundary.
    10·1 answer
  • Consider that you have two solutions of acetic acid, Ka = 1.8x10-5, one solution that is 1.59 M and another solution that is 0.1
    6·1 answer
  • Give an example of a time when you would want to increase friction.
    13·1 answer
  • PLEASE PLEASE BRAINLIEST HELP ME PLEASE SOMEONE VARY SMART PLEASE SOMEONE THAT IS ACE PLEASE OR AN EXPERT OR SOMEONE FROME THE L
    15·2 answers
  • I NEED THIS ASAP Someone please help me
    15·2 answers
  • What effect does temperature have on reaction rate?
    13·1 answer
  • What are the effect of water pollition​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!