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
jenyasd209 [6]
3 years ago
15

What is 4.21 rounded to the nearest tenth?

Chemistry
2 answers:
hjlf3 years ago
6 0
4.2 is the correct answer
dangina [55]3 years ago
4 0
The answer is 4.20 hope this helps

You might be interested in
Which of the following is the greatest mass? Select one:
algol13

Answer:

B. 1.000 × 10-4 kg

Explanation:

A. 1.000 × 10-8 Mg = 0.00000001 Mg = 0.1 mg

B. 0.0001 kg = 0.1 g

C. 1000 ug = 1 mg

D. 1 .000 × 10-2 cg = 0.01 cg = 0.1 mg

A = D

B > C > A = D

8 0
3 years ago
the pressure on 2.50L of N20 changes from 105 kPa to 40.5 kPa. if the temperature does not change, what will the new volume be.
tresset_1 [31]

Answer:

6.48L

Explanation:

Given parameters:

V₁ = 2.5L

P₁  = 105 kPa

P₂  =  40.5 kPa

Condition: constant temperature

Unknown:

V₂  = ?

Solution:

To solve this problem, we are considering pressure and volume relationship. This should be solved by applying the knowledge of Boyle's law.

The law states that "The volume of fixed mass of a gas varies inversely as the pressure changes if the temperature is constant".

Mathematically;

                     P₁V₁  = P₂V₂

where P and V are pressure and volume, 1 and 2 represents initial and final states.

Substitute to find the V₂;

                  105 x 2.5  = 40.5 x  V₂

        Solving for V₂ gives 6.48L

6 0
3 years ago
Choose all the answers that apply.
Zigmanuir [339]

Answer: The answers are the first and third options.

7 0
3 years ago
Read 2 more answers
Round to 4 significant figures.<br> 2.3581 x 103<br> [?] x 103
Masja [62]

Answer:

2.358

Explanation:

6 0
3 years ago
Which of the following statements concerning coordinate covalent bonds is correct? Group of answer choices One of the atoms invo
lys-0071 [83]
One of the atoms involved must be a metal and the other a nonmetal
6 0
3 years ago
Other questions:
  • For the reaction 2Co3+(aq)+2Cl−(aq)→2Co2+(aq)+Cl2(g). E∘=0.483 V2Co3+(aq)+2Cl−(aq)→2Co2+(aq)+Cl2(g). E∘=0.483 V what is the cell
    7·1 answer
  • What would be the answer
    15·1 answer
  • What are the oxidation numbers for HCL
    13·1 answer
  • plants are able to carry out photosynthesis because they contain the organelle known as an mitochondrion . is that true or false
    15·1 answer
  • 2
    7·1 answer
  • What is the mass of 20 moles of fluorine?
    13·1 answer
  • An atom is a neutral particle why​
    11·2 answers
  • According to Newton's law of universal gravitation, how do the masses of two
    11·1 answer
  • Order the terms according to the path followed by oxygen during cellular respiration.​
    9·1 answer
  • Question 5 pls this is due in 3 minutes!!
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!