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
STALIN [3.7K]
3 years ago
6

What is the density of an object with a mass of 2 g & a volume of 8 ml ?

Chemistry
1 answer:
Pachacha [2.7K]3 years ago
8 0
Density=mass/volume
density=2/8
density=0.25g/ml
You might be interested in
The temperature in mark’s town is 30 degrees Fahrenheit. The temperature in Vikki’s town is 82 degrees Fahrenheit. In both towns
allochka39001 [22]

Answer:

sorry don't know the answer but i really need the points sorry

Explanation:

7 0
3 years ago
Which statement explains why water is classified
hichkok12 [17]

Answer: Option (1) is the correct answer.

Explanation:

Compounds are the substances which contain two or more different elements.

Similarly, water is a compound as it is made up when two hydrogen atoms combine with one oxygen atom. Compounds can be broken down with the help of chemical reactions.

Hence, the statement water can be broken down by chemical means explains why water is classified  as a compound.

5 0
3 years ago
Read 2 more answers
135 grams of sodium has ______ moles.<br><br> (Enter just the number for this one.)
just olya [345]

Answer : 135 grams of sodium has 5.869 moles.

Solution : Given,

Mass of sodium = 135 grams

Molar mass of sodium = 23 g/mole

Formula used :

\text{Moles of sodium}=\frac{\text{Mass of sodium}}{\text{Molar mass of sodium}}

Now put all the given values in this formula, we get

\text{Moles of sodium}=\frac{135g}{23g/mole}=5.869moles

Therefore, the moles of sodium present in 135 grams of sodium is, 5.869 moles.


6 0
3 years ago
How many grams of O₂ are required to react completely with 14.6 g of Na to form sodium oxide, Na₂O?
Bad White [126]

The balanced chemical reaction is :

O_2 + 4Na \ -> \ 2Na_2O

Number of moles of Na, n = \dfrac{14.6}{23} = 0.635 \  mol .

Now, from balance chemical reaction we can see that 1 mole of oxygen reacts with 4 moles of sodium.

So, number of moles of oxygen are :

n = \dfrac{0.635}{4}\  mole

So, amount of oxygen required is :

m = \dfrac{0.635 \times 32}{4}\  gm\\\\m = 5.08 \ gm

Therefore, 5.08 gram of oxygen will react with 14.6 gram of sodium.

7 0
3 years ago
A first order reaction B=C has a half life of
Lostsunrise [7]

Answer:

90.46 well that's how I got the answer from my calculations

5 0
3 years ago
Other questions:
  • In an atomic model that includes a nucleus, positive charge is
    6·1 answer
  • What numbers indicate an acid?
    12·2 answers
  • What is an ecosystem?
    12·1 answer
  • Consider the balanced chemical reaction below and determine the percent yield for iron if 11.2 moles of Iron(III) oxide yielded
    10·1 answer
  • How do I answer and do this
    14·1 answer
  • If Veronica spins in a circle with the compass in her hand, which force keeps the compass' needle pointing north?
    11·2 answers
  • Which of the following equilibria could be used to support the claim that the addition of a small amount of NaOH to the buffer w
    14·1 answer
  • HELP PLEASE!!!<br><br> HCl is _____.<br><br> a base<br> a neutral<br> an acid
    13·1 answer
  • What is in the nucleus of an atom?
    9·2 answers
  • A student investigates the motion of a toy vehicle. The student graphs 40 seconds of data from the investigation.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!