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
Fynjy0 [20]
3 years ago
8

A variable is something that can never be changed in an experiment. False True

Chemistry
1 answer:
Agata [3.3K]3 years ago
3 0
I’m pretty sure it true
You might be interested in
For each pair, predict which molecule has the greater molar entropy under the same conditions (assume gaseous species).c o 2, ca
larisa [96]
I used to know this. I don't really remember but is used to know it. Im in 6th grade now
8 0
4 years ago
If a sample of air in a school container was heated, would the percentage of oxygen in the air increase, decrease, or remain unc
Viktor [21]

Answer:

increase

Explanation:

Let's suppose we have a sample of air in a closed container. We heat the container and we want to predict what would happen to the pressure.

According to Gay-Lussac's law, the pressure of a gas is directly proportional to its absolute temperature.

Thus, if we increased the temperature of the air by heating it, its pressure would increase.

If a sample of air in a closed container was heated, the total pressure of the air would increase.

5 0
3 years ago
In humans, infections by fungi and protists are usually more difficult to treat than bacteria infections. Suggest an explanation
Basile [38]
<span>Fungal diseases are difficult to treat mainly because they are eukaryotic organisms just like us humans, and therefore have less differences for drugs to target without harming the human body as well. Most antibiotics target e.g. the peptidoglycan layer in the bacterial (a prokaryote) cell wall, which is a safe target since eukaryotic cells do not have equivalent structures. Similarly many differences in metabolic pathways between humans and prokaryotes is often targeted by antibiotics, but metabolism of fungi and humans is much more uniform, and hence it is difficult to exclusively target the fungi only.

HOPE THIS HELPS!

</span>
5 0
4 years ago
Read 2 more answers
A solution with a ph of 4 has _________ the concentration of h+ present compared to a solution with a ph of 5.
Marina CMI [18]
<span>A solution with a pH of 4 has ten times the concentration of H</span>⁺<span> present compared to a solution with a pH of 5.
</span>pH <span>is a numeric scale for the acidity or basicity of an aqueous solution. It is  the negative of the base 10 logarithm of the molar concentration of hydrogen ions.
</span>[H⁺] = 10∧-pH.
pH = 4 → [H⁺]₁ = 10⁻⁴ M = 0,0001 M.
pH = 5 → [H⁺]₂ = 10⁻⁵ M = 0,00001 M.
[H⁺]₁ / [H⁺]₂ = 0,0001 M / 0,00001 M.
[H⁺]₁ / [H⁺]₂ = 10.
7 0
3 years ago
Help please I’m stuck on thsi question
vodomira [7]
Since it’s asking for chemical to thermal, B.
7 0
4 years ago
Read 2 more answers
Other questions:
  • In which of the following atoms are valence electrons in the lowest average potential energy states?
    10·1 answer
  • Why is it important to use the metric system when conducting scientific investigations?
    5·1 answer
  • What are benthos?
    14·2 answers
  • Which of the following is not one of the four environmental spheres in which all of the Earth’s physical and natural processes o
    14·2 answers
  • Crystal lattice definition
    11·1 answer
  • MgBr2 + NaCl -&gt; MgCl2 + NaBr is the reaction between magnesium bromide and sodium chloride. What type of reaction is this?
    7·2 answers
  • There are two different compounds of sulfur and fluorine.
    14·1 answer
  • A gas sample has an initial volume of 63.2 mL, an initial temperature of 42.0 ?C, and an initial pressure of 751 mmHg. The volum
    11·1 answer
  • What is it that lives if it is fed, and dies if you give it a drink
    13·2 answers
  • What is the momentum of a 0.151 kg baseball that is thrown with a velocity of 28.0 m/s towards first base?​
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!