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
xenn [34]
3 years ago
7

Write the uses of all elements which are given in the periodic table​

Chemistry
1 answer:
Karolina [17]3 years ago
6 0

Answer:

write the uses of all elements which are given in the periodic table

You might be interested in
What is a scientific model? How is a scientific model helpful to the brain for relaying a scientific
Vladimir79 [104]

Answer: A scientific model is a physical and mathematical and conceptual representation of a system of ideas, events or processes.

ANd also for your second question i dont know what you mean?

Explanation:

4 0
3 years ago
How many grams of NaOH are in a 225.0 mL sample of a 2.5 M solution of NaOH? (Molar mass of NaOH is 40.0 g/mol)
ladessa [460]

Answer

Approx. 4 g of NaOH.

Explanation:

Concentration

 

=

 

Moles

Volume of solution

Number of moles

 

=

 

Volume

×

concentration  

=

0.250

⋅

L

×

0.400

⋅

m

o

l

⋅

L

−

1

=

 

0.100

⋅

m

o

l

Mass of sodium hydroxide

 

=

 

0.100

⋅

m

o

l

×

40.0

⋅

g

⋅

m

o

l

−

1

=

?

?

⋅

g

Explanation:

6 0
3 years ago
hydrogen and oxygene react to form water l. How many molecules of O2 are required to produce 0.6 of H20​
user100 [1]

Answer:

It is required 0.3 molecules of O2 to produce 0.6 molecules of H2O

Explanation:

The water´s formation reaction is: 2H2 + O2 --> 2H2O

This reaction shows the molecular O2:H2O ratio: 1:2.

Then, if we want to know how many molecules of O2 are required to produce 0.6 of H20​, it is necessary calculate as it showed next:

0.6 molecules H2O * (1 molecula O2 / 2 molecules H2O)= 0.3 molecule O2

8 0
3 years ago
A ball is rolled in a straight line on a smooth frictionless surface. According to Newton's law of inertia, the ball will –
Tom [10]

Answer:

D

Explanation:

7 0
3 years ago
Read 2 more answers
Calculate the molarity (M) of a solution containing 49.0 grams of H3PO4 in 500 mL of solution.
vlada-n [284]

Answer

The molarity (M) of the H3PO4 solution = 1.0 M

Explanation

Given:

Mass of H3PO4 = 49.0 grams

Volume of the solution = 500 mL = 500/1000 = 0.5 L

What to find:

The molarity (M) of the H3PO4 solution.

Step-by-step solution:

Step 1: Convert 49.0 grams H3PO4 to moles using the mole formula.

Mole=\frac{Mass}{Molar\text{ }mass}

The molar mass of H3PO4 = 97.994 g/mol

So,

Mole=\frac{49.0\text{ }g}{97.994\text{ }g\text{/}mol}=0.50\text{ }mol

Step 2: Calculate the molarity of the solution using the molarity formula.

Molarity=\frac{Mole}{Volume\text{ }in\text{ }L}

Putting mole = 0.50 mol and volume = 0.50L into the formula, we have;

Molarity=\frac{0.50mol}{0.50L}=1.0\text{ }M

The molarity (M) of the H3PO4 solution = 1.0 M

5 0
1 year ago
Other questions:
  • What is the atomic number of copper
    9·2 answers
  • Alkane is obtained from the catalytic hydrogenation of both alkene A and alkene B. The heat of hydrogenation of alkene A is 29.8
    14·1 answer
  • Which best explains how the diffraction pattern observed in Young’s experiment supports the wave theory of light?
    8·2 answers
  • A student successfully neutralizes 25.0mL of HCl(aq) during a titration experiment with 18.5mL of 0.150M NaOH(aq). What is the c
    9·1 answer
  • Which of these best describes heat transfer through conduction?
    11·2 answers
  • If an object sinks in water it’s density is less than that of water true or false
    8·2 answers
  • What is the answer to this
    14·2 answers
  • What will cause an object to move?
    7·1 answer
  • Need help answering these questions. Please show all work. Thank you so much.
    5·1 answer
  • Some of the most dangerous conditions occur when temperatures are hovering around _______ degrees fahrenheit, or freezing, when
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!