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
Ainat [17]
2 years ago
7

Alkaline batteries adopted their name from the _____ that is present in the reactions at both the zinc anode and the MnO2 cathod

e.
Chemistry
1 answer:
Paul [167]2 years ago
4 0

Answer:

hydroxide ion

Explanation:

The alkaline battery got this name because it has an alkaline electrolyte of potassium hydroxide.

You might be interested in
0.10 mol of argon gas is admitted to an evacuated 50 cm3 container at 20°C. The gas then undergoes heating at constant volume to
dolphi86 [110]

<u>Answer:</u> The final pressure of the gas is 9.41 atm

<u>Explanation:</u>

To calculate the pressure of the gas, we use the equation given by ideal gas equation:

PV=nRT

where,

P = pressure of the gas = ?

V = Volume of gas = 50cm^3=0.05L    (Conversion factor:  1L=1000cm^3 )

n = Number of moles = 0.01 mol

R = Gas constant = 0.0821\text{ L atm }mol^{-1}K^{-1}

T = temperature of the gas = 300^oC=[300+273]K=573K

Putting values in above equation, we get:

P\times 0.050L=0.01\times 0.0821\text{ L atm }mol^{-1}K^{-1}\times 573K\\\\P=\frac{0.01\times 0.0821\times 573}{0.05}=9.41atm

Hence, the final pressure of the gas is 9.41 atm

5 0
3 years ago
Select the correct answer.
Alenkasestr [34]

Answer:

D

Explanation:

The unit used to measure atomic mass is the atomic mass unit (amu). A single amu is equivalent to 1/12 the mass of an atom from the carbon-12 isotopIsotopes with different numbers of protons and neutrons will have an actual mass slightly different from the atomic mass calculated in atomic mass units.

4 0
1 year ago
Read 2 more answers
When was helium discoved?
andrey2020 [161]
It was discovered in 1868.i hope this helps you .
4 0
3 years ago
In a DNA sample, 15% of the bases are thymine (T). What percentage of the bases in this sample are cytosine (C)?
allochka39001 [22]

Answer:

C) 35%

Explanation:

Thymine pairs with adenine. If thymine is 15% then so would adenine be 15%. That leaves the reaminder to be 70%. Cytosine pairs with guanine, thereby, they would each be 35%.

3 0
3 years ago
1. How many hydrogen atoms are in 5 molecules of isopropyl alcohol, C3H7O
Gekata [30.6K]
1. c. 35
2. <span>d. 1.26 x 10^24 molecules 
3. </span><span>d. 303.6 g</span> 
8 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following elements possesses the fewest valence electrons? bismuth boron barium bromine
    12·2 answers
  • What product of Al makes it suiyable to be used in electric cables
    13·1 answer
  • What is the house off Neutron​
    15·1 answer
  • Please help me . I will mark brainly
    11·1 answer
  • How did seed availability affect traits of individuals in the medium ground finch population of the galapagos islands
    14·1 answer
  • What is the total value of a small digit in 94257<br>​
    13·2 answers
  • Why does dew form on the outside of your glass filled with ice cold water?
    13·1 answer
  • Why do unicellular organisms live mainly in water?
    14·1 answer
  • What are some genaral properties of gases that govern their behavior
    13·2 answers
  • An increase in enzyme or substrate concentration will
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!