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
Katarina [22]
3 years ago
11

What is the meaning of a null hypothesis being rejected?

Chemistry
2 answers:
vovikov84 [41]3 years ago
8 0

Answer:

the hypothesis is false

Explanation:

it I rejected because the hypothesis has been tested severally and the answer still proves to be wrong

swat323 years ago
7 0

Answer:

probably the third option: The hypothesis is false

Explanation:

You might be interested in
Poisons are more serious and harmful than toxins if ingested because the _____ is lower. Small amounts of poison can be extremel
Step2247 [10]

Answer:

The death is lower

Explanation:

im gonna get a warning watch

3 0
2 years ago
An indicator was used to test a water solution with a pH of 12. Which indicator color would be observed?
juin [17]

Answer:

4) pink  phenolphthalein

Explanation:

5 0
3 years ago
How does a catalyst increase reaction rate?
Effectus [21]
By increasing the action energy
7 0
3 years ago
How do the results of the iodine test indicate that hydrolysis of starch occurred
Irina18 [472]

Answer:

Blue color of iodine-starch complex is disappear upon hysrolysis

Explanation:

Starch:

Starch is a polysaccharide

it is energy reservoir.

starch is made of monomers of glucose in a chain form.

The simplest form of starch is linear polymer amylose.

Iodine Test:

In this test iodine solution added to the solution to check the presence of starch.  

Iodine solution = elemental iodine + KI

Result of Iodine Test:

when the iodine solution (I₃⁻) is added to a solution it show two types of result.

if the starch is present this I₃⁻ form a complex with amylose chain of starch and impart a dark blue color.

if starch is not present then the color will be orange or yellow.

Hydrolysis of Starch:

Hydrolysis of starch is carried out by an enzyme, this enzyme break down the starch into simpler sugar molecule.

So,

When the hydrolysis of starch occur the starch convert to glucose. Then the blue color of starch and iodine complex formed during iodine test is disappear that will be the indication of hydrolysis of starch.

6 0
3 years ago
A series stack of alkaline cells produces 6 kW of power. If each cell contributes 14.5 W, how many cells are in the stack? (Roun
liberstina [14]
The answer to this question would be the last option - D) 414
4 0
3 years ago
Read 2 more answers
Other questions:
  • Write the balanced COMPLETE ionic equation for the reaction when
    6·1 answer
  • What are 3 general rules to predict the stability of an isotope
    6·1 answer
  • What evidence do you see that a chemical reaction is taking place when you add hydrogen peroxide to potassium ioxide??
    9·1 answer
  • How many grams of iron (density = 7.87 g/mL ) would occupy the same volume as 96.4 g of aluminum (density = 2.70 g/mL)?
    7·2 answers
  • Nitric acid is a key industrial chemical, largely used to make fertilizers and explosives. The first step in its synthesis is th
    11·1 answer
  • How can I solve this question.​
    7·1 answer
  • If a person burns 2171 Cal each day, how much energy (kJ) does she burn in 2 days?
    11·1 answer
  • Why methyl orange in basic medium is yellow and why it is red in acidic medium?​
    10·1 answer
  • Which electrons in an atom will have the same amount of energy?
    11·1 answer
  • Select The on that most applys<br><br><br> Will mark brainliest
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!