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
DaniilM [7]
3 years ago
6

Mass=40g volume=20mL what is the density

Chemistry
2 answers:
qaws [65]3 years ago
6 0
Ρ = m/V
=
40 gram
20 milliliter
= 2 gram/milliliter
= 2000 kilogram/cubic meter
Allushta [10]3 years ago
4 0

Answer:

2g/mL

Explanation:

Density = m/V

  • m = mass
  • V = volume

Density = 40g/20mL = 2g/mL

You might be interested in
What is sound? it is a form of energy produced by ____________.
Tpy6a [65]

Answer:

D

Explanation:

sound is produced when the matter vibrates

5 0
3 years ago
Read 2 more answers
CH, +<br> ,<br> 0, → _CO, +<br> Н,0<br> Balance chemical equation
Flura [38]

Answer:

2 CH2 + 3 O2 = 2 CO2 + 2 H2O

Explanation:

This is what I think that you meant by the question listed. When balancing a chemical equation, you want to make sure that there are equal amounts of each element on each side.

Originally, the equation's elements looked like this: 1 C on left & 1 C on right; 2 H on left & 2 H on right; 2 O on left and 3 O on right. Because these are not balanced, you need to add coefficients.

When adding coefficients, you need to make sure that all of the elements stay balanced, not just one that you are trying to fix. I know that some equations are really difficult to balance, and when that is the case, there are equation balancing websites that can help out.

However, what always helps me is making a chart and continuing to keep up with the changes I am making. It is a trial and error process.

6 0
3 years ago
Use the following chemical equation to answer the question. 4K(s) + O2(g) → 2 K2O(s). If a staff member at a laboratory has 12.0
Allushta [10]

Answer:14.5 grams of K2O

Explanation:

4 0
3 years ago
Gold (au) goes from an oxidation number of +3 to 0 in the reaction below. 2Au3+ + 6I- ---&gt; 2Au + 3I2. what describes the Au3+
mamaluj [8]
In a reduction-oxidation or better known as REDOX reaction, the substance that reduces the oxidation state is known as the substance that is REDUCED. It serves as the oxidizing agent. Thus, Au3+  in this number is considered as the oxidizing agent. 
7 0
3 years ago
Read 2 more answers
What conversion factor will help solve the problem?
Scorpion4ik [409]

Answer:

i fond nothing sooory

pic so PC

5 0
3 years ago
Other questions:
  • In an oxidation-reduction reaction, what happens to the electrons in the reduction process?
    9·1 answer
  • HCl solution, about 250 mL in volume. The pH of the solution is 1.37. Calculate the molar concentration of HCl in this solution.
    5·1 answer
  • A 1.2 kg block of iron at 32 ∘C is rapidly heated by a torch such that 12 kJ is transferred to it. What temperature would the bl
    9·1 answer
  • What happens when you add solids to a container of liquids with various densities?
    9·1 answer
  • Suppose 0.210kg of octane are burned in air at a pressure of exactly 1 atm and a temperature of 20.0°C. Calculate the volume of
    11·2 answers
  • How many grams are in 1.25 moles of Potassium hydroxide, KOH?<br><br>1 point​
    8·1 answer
  • ILL GIVE YOU A CROWN
    9·1 answer
  • Trying to explain why a cactus needs little water to survive is an example of
    6·1 answer
  • How to get metal from ore containing KI (potassium iodide)? suggest a way and make an equation
    12·1 answer
  • How many molecules are in 450.0 grams of aluminum fluoride (AIF3)?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!