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
fiasKO [112]
2 years ago
6

Fill in the blank... Each element is made up of only one kind of ________

Chemistry
1 answer:
strojnjashka [21]2 years ago
3 0
Each element is made up of only one kind of atom.
You might be interested in
An oxygen atom has a mass of 2.66 x 10^-23 g and a glass of water has a mass of 0.050kg. Use this information to answer the ques
fomenos
<h2>ANSWER OF EACH PART ARE GIVEN BELOW</h2>

Explanation:

A)

We know, each mole contains N_A= 6.023 \times 10^{23} atoms.

It is given that mass of one oxygen atom is m= 2.66\times 10^{-23}\ g.

Therefore, mass of one mole of oxygen, M=m\times N_A.

Putting value of n and N_A,

M=2.66\times 10^{-23}\times 6.023\times 10^{23} \ gm\\M=16.0\ gm

B)

Given,

Mass of water in glass=0.050 kg = 50 gm.

From above part mass of one mole of oxygen atoms = 16.0 gm.

Therefore, number of mole of oxygen equivalent to 50 gm oxygen=\dfrac{50}{16}=3.1 \ moles.

LEARN MORE :

Avogadro's number

brainly.com/question/12902286

3 0
3 years ago
Because of river discharge, large changes in ocean salinity often occur __.
Lorico [155]
I’m guessing it would be A because the river discharge tends to gather near coastlines where the river ends
5 0
3 years ago
What is the concentration of a sodium hydroxide solution if 14.5 mL of it are exactly neutralized by 30.0 mL of a 0.500 M hydroc
rusak2 [61]

Answer:

1.03 M

Explanation:

Step 1: Write the balanced equation

NaOH + HCl ⇒ NaCl + H₂O

Step 2: Calculate the reacting moles of HCl

30.0 mL (0.0300 L) of 0.500 M HCl react.

0.0300 L × 0.500 mol/L = 0.0150 mol

Step 3: Calculate the moles of NaOH that react with 0.0150 moles of HCl

The molar ratio of NaOH to HCl is 1:1. The moles of NaOH that react are 1/1 × 0.0150 mol = 0.0150 mol.

Step 4: Calculate the molar concentration of NaOH

0.0150 moles of NaOH are in 14.5 mL (0.0145 L).

M = 0.0150 mol/0.0145 L = 1.03 M

4 0
3 years ago
Which of the following statements describes sound energy?
Galina-37 [17]

Answer:

C.

Explanation:

8 0
2 years ago
A combustion reaction is one type of what class of reactions?
ivanzaharov [21]
It is a. oxidation-reduction
6 0
3 years ago
Other questions:
  • Research is being carried out on cellulose as a source of chemicals for the production of fibers, coatings, and plastics. Cellul
    8·1 answer
  • We use Indicaters because
    15·1 answer
  • A solid metal oxide crystallizes in a cubic unit cell. In the unit cell there are metal (M) ions on every corner and in the cent
    12·1 answer
  • What do scientists who study the human microbiome hope to achieve?
    6·2 answers
  • A solution is prepared by mixing 631 mLmL of methanol with 501 mLmL of water. The molarity of methanol in the resulting solution
    12·2 answers
  • How do knowing the half-life of carbon 14 can tell scientists the absolute age of a rock sample
    5·1 answer
  • A researcher wants to test the solubility (property of being dissolved) of salt in water as the temperature of the water increas
    13·1 answer
  • What is the importance of different types of mirrors and lenses?​
    8·1 answer
  • Which of the following would most likely cause a chemical reaction to occur at a slower rate?
    10·2 answers
  • I have 250 mL of an acid. If a friend gives me another 75 mL of the same acid, how much will I have?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!