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
sleet_krkn [62]
3 years ago
15

ADD NOTE

Chemistry
1 answer:
Nikitich [7]3 years ago
5 0

Answer:

2.00 M KOH

Explanation:

Divide moles by volume and make sure your volume is in LITERS, not mL.

0.0400 mol KOH / 0.0200 L = 2.00 M KOH

You might be interested in
While ALL the information in a Schumer Box is important, which items do you think matter most on a day-to-day basis?
Oksana_A [137]

Answer:

The most important information is: financial charges, annual fees, minimum payments and how the balance is calculated.

Explanation:

A Schumer Box is a table where the credit card companies disclose all the terms and conditions necessary to make a contract with them, as well as disclose all fees, charges, balances and elements that make up the credit card.

All information shown on a Schumer Box is important, but the most important is that which deals directly with the customer's money or balance. This information is: financial charges, annual fees, minimum payments and how the balance is calculated.

3 0
3 years ago
Blood is maintained at a pH of 7.4 by the primary buffers in the plasma and secondary buffers in the erythrocytes. The plasma co
Alinara [238K]

Answer:

74.456.6.4.7.5.3.33-6.57

Explanation:

4 0
4 years ago
What’s the balanced equation for the reaction between zinc oxide and dilute hydrochloric acid ?
larisa [96]

Answer:

ZnO + 2HCl → ZnCl₂ + H₂O

Explanation:

The <em>unbalanced reaction</em> between zinc oxide (ZnO) and dilute hydrochloric acid (HCl) is:

  • ZnO + HCl → ZnCl₂ + H₂O

Now we'll procede to <u>balance the equation</u>:

  • <em>There is 1 Cl atom on the left side and 2 on the right</em>, so we change that:
  • ZnO + 2HCl → ZnCl₂ + H₂O

The number of atoms for each element is the same on both sides, so the equation is now balanced.

7 0
3 years ago
Which technology was essential for the development of the cell theory?​
vodka [1.7K]

Answer: Microscope

Explanation: This is a kid answering :)

8 0
3 years ago
How many kilojoules of heat would be required to fully melt a 0.834 m³ block of ice , provided that the density of ice is 917 kg
Lerok [7]

2.54 × 10⁵ kJ of heat are required to fully melt a 0.834 m³ block of ice, with a density of 917 kg / m³.

<h3>What is melting?</h3>

Melting is a physical change in which solids turn into liquids.

  • Step 1. Calculate the mass of ice.

We have a block of 0.834 m³ of ice with a density of 917 kg/m³.

0.834 m³ × 917 kg/m³ = 765 kg = 7.65 × 10⁵ g

  • Step 2. Convert 7.65 × 10⁵ g to moles.

We will use the molar mass of water.

7.65 × 10⁵ g × (1 mol/18,02 g) = 4.24 × 10⁴ mol

  • Step 3. Calculate the heat required to melt 4.24 × 10⁴ moles of water.

According to the thermochemical equation, 6.01 kJ are required to melt 1 mol of water.

4.24 × 10⁴ mol × (6.01 kJ/mol) = 2.54 × 10⁵ kJ

2.54 × 10⁵ kJ of heat are required to fully melt a 0.834 m³ block of ice, with a density of 917 kg / m³.

Learn more about melting here: brainly.com/question/40140

#SPJ1

8 0
2 years ago
Other questions:
  • What rock results from cementation of sediment?
    13·1 answer
  • What is the part of the experiment that is measured? * 2 points control group constant independent variable dependent variable?
    6·1 answer
  • 3) If an electrical appliance has 150.0 V applied causing a current of 2.34 amps, what is the
    15·1 answer
  • When water boils and evaporates, it reaches what temperature?
    12·1 answer
  • A chemist designs a galvanic cell that uses these two half-reactions:
    7·1 answer
  • For the reaction N2(g) + 3H2(g) 2NH3(g), what will happen if hydrogen gas was removed from the reaction mixture? There will be a
    8·1 answer
  • List three properties you would expect the metal zinc to have
    8·2 answers
  • In the following compound (HCl) How many electrons are gained and lost by each atom?
    13·1 answer
  • How many core electrons does magnesium ion have​
    6·2 answers
  • Identify how energy changed form so it could be use in each example.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!