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
sesenic [268]
3 years ago
8

A class was performing an experiment to discover the pH values of some common household substances. The results of three groups

are shown in the table below.
Substance
Group 1 pH
Group 2 pH
Group 3 pH
Lemon juice
2.2
2.2
2.1
Vinegar
2.8
2.8
8.2
Baking soda
8.4
8.5
8.4
Milk of magnesia
10.2
10.3
10.2

Which statement best describes evidence that Group 3’s data are less valid than the data for the other two groups?
a. Group 3’s pH value for lemon juice is lower than the values of the other two groups.
b. Group 3’s pH value for vinegar is much higher than the values of the other two groups.
c. Group 3’s pH value for baking soda does not exactly match the values of the other two groups.
d. Group 3’s pH value for milk of magnesia is different from the value obtained by Group 2.
Biology
1 answer:
Vera_Pavlovna [14]3 years ago
7 0

Answer:

b. Group 3’s pH value for vinegar is much higher than the values of the other two groups.

hope it helps :)

mark brainliest!!!

You might be interested in
Using what you know about the ways muscle moves predict which organelles
rewona [7]
" <span>The cells I believe would be most common in muscle cells would be mitochondria in order to give the muscle, whether smooth, cardiac, or skeletal, enough energy to perform its job".....hope this helps.</span>
3 0
3 years ago
Darwin often used the phrase "__________" to suggest that species must have descended from preexisting species and that change t
alisha [4.7K]
The correct answer is descent with modification.
8 0
3 years ago
How might mouthparts of various shapes be adaptive for crayfish?
Scrat [10]
<span>2 pairs of Maxillae- holding food

Mandibles- chew food

3 pairs of Maxillipeds- holding and manipulating food</span>
5 0
4 years ago
All arteries carry blood that contains a high level of oxygen.<br> TRUE OR FALSE
Fittoniya [83]

Answer:

Arteries carry blood low in oxygen from the right side of the heart to the lungs to be oxygenated. Blood high in oxygen enters the left side of the heart in the pulmonary vein and is pumped into the systemic circuit.

7 0
3 years ago
Read 2 more answers
Each ATP molecule contains about 1% of the amount of chemical energy available from the complete oxidation of a single glucose m
Dima020 [189]

Answer:

b. It is converted to heat.

Explanation:

Cellular respiration is the process of energy transformation. During this process,  the chemical energy present in the chemical bonds of glucose molecules is first stored in the form of NADH and FAD2. Then the same is used to drive the process of ATP synthesis during oxidative phosphorylation.  Each process of energy transformation loses some of the energy in the form of heat to the surroundings. The lost energy can not perform any function. Therefore, part of the energy of glucose is also lost in the form of heat as the process of cellular respiration follows the laws of thermodynamics.

4 0
4 years ago
Other questions:
  • Somatic cells of roundworms have four individual chromosomes per cell. How many chromosomes would you expect to find in a gamete
    7·1 answer
  • A plantlike organism on the planet Pandora can have three recessive genetic traits: bluish leaves, due to an allele (a) of gene
    10·2 answers
  • Rag the genotypes and phenotypes from the left to correctly complete the punnett square for the f2 generation. drag only blue la
    14·1 answer
  • During which three phase are individual chromosomes no longer
    13·1 answer
  • How have humans offset the balance of the carbon cycle
    15·1 answer
  • Use polymer in a sentence
    13·2 answers
  • What type of reaction is the following? HELPPPPPP<br><br> ASAPPPP
    14·2 answers
  • Match the following methods of movement with the appropriate protozoan. 1. cilia amoeba 2. flagellum euglena 3. pseudopodia para
    13·2 answers
  • At which point does the motion of convention currents occur to drive plate movement
    15·1 answer
  • WW
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!