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
baherus [9]
3 years ago
7

Density is the ratio of mass to volume. Another way to say this is

Chemistry
1 answer:
Oliga [24]3 years ago
5 0

Answer:

my teacher would let u say the density to mass is the ratio but i think everyone's different

You might be interested in
Which one of the following is an incorrect orbital notation?
Alexxx [7]

bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb

4 0
3 years ago
Read 2 more answers
Peppers have a white section that hold all of their seeds. There is a kind of chemical in the white region that triggers the "sp
notka56 [123]
Capsaicin is the chemical in the peppers, and then milk reverses it by using casein (A fat loving compound) to bond to the capsaicin and wash it away. Hope this helps!
4 0
3 years ago
Indicate the number of significant figures in the measured number 0.0020 <br> A. 4<br> B. 5<br> C. 2
Sergio [31]

<u>Answer:</u>

The correct answer option is C. 2.

<u>Explanation:</u>

We are given the number '0.0020' and we are to indicate the number of significant figures in the given measured number.

According to the rules of significant figures, numbers that are non-zero, zeros between any two significant numbers and the ending zeros in the decimal position are categorized as significant figures.

Since there is one non-zero number and one ending zero in the decimal position, therefore 0.0020 has 2 significant figures.

6 0
3 years ago
_Li + __F2 → _LIF<br> How do I balance this?
Semmy [17]

Answer:

 2Li   +   F₂    →    2LiF

Explanation:

The reaction expression is given as:

          Li   +   F₂    →     LiF

We are to balance the expression. In that case, the number of atoms on both sides of the expression must be the same.

 Let use a mathematical approach to solve this problem;

  Assign variables a,b and c as the coefficients that will balance the expression:

             aLi   +  bF₂    →     cLiF

Conserving Li: a  = c

                   F:  2b  = c

          let a = 1, c  = 1 and b  = \frac{1}{2}  

  Multiply through by 2;

        a  = 2, b = 1 and c  = 2

               2Li   +   F₂    →    2LiF

 

5 0
3 years ago
How many moles of aluminum metal are required to produce 4.04 L of hydrogen gas at 1.11 atm and 27 °C by reaction with HCl? ​
Strike441 [17]

Answer:

0.121 moles of aluminum metal are required to produce 4.04 L of hydrogen gas at 1.11 atm and 27 °C by reaction with HCl

Explanation:

This is the reaction:

2 Al(s) + 6 HCl(aq) → 2 AlCl₃ (aq) + 3 H₂(g)

To make 3 moles of H₂, we need 2 moles of Al.

By conditions given, we will find out how many moles of H₂ do we have.

Let's use the Ideal Gas Law

P. V = n . R . T

1.11 atm . 4.04L = n . 0.082 L.atm/mol.K . 300K

(1.11 atm . 4.04L) / (0.082 mol.K/L.atm . 300K) = n

0.182 mol = n

So the rule of three will be:

If 3 moles of H₂ came from 2 moles of Al

0.182 moles of H₂ will come from x

(0.182 .2) / 3 = 0.121 moles

4 0
3 years ago
Other questions:
  • Why can't polyatomic ions ever stand alone?
    10·1 answer
  • Which is an example of a chemical change?
    6·2 answers
  • What is the equilibrium vapor pressure of a liquid and how is it measured
    15·1 answer
  • When two atoms combine by transferring electrons, it is a(n) _____ bond.<br> ionic<br> covalent
    15·1 answer
  • How many joules of heat are required to heat 25.0 g of isopropyl alcohol from the prevailing room temperature, 21.2 oC, to its b
    11·1 answer
  • What is the half life of the element in the picture<br><br> HELP BRAINLIEST
    15·1 answer
  • Write the lowest electron negative
    12·1 answer
  • Describe the trend for atomic radius from left to right across a period. Use atomic
    14·1 answer
  • For each of the following compounds, state whether it is ionic or covalent. If it is ionic, write the symbols for the ions invol
    15·1 answer
  • Solid iron combines with oxygen gas to form solid iron(III) oxide. Which of the following equations best describes this reaction
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!