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
ahrayia [7]
2 years ago
15

How do I do this? What do I do what are the steps I have no idea

Chemistry
2 answers:
Vesna [10]2 years ago
7 0
B should be 20 because only 1 oxygen goes into water
C is hydrogen because 2 hydrogens go into each water
Can't read anything beyond c
Mashutka [201]2 years ago
4 0

Answer:

22.519

Explanation:

You might be interested in
A ground test utilizing an auxiliary current electrode and an auxiliary potential electrode is known as the______.
kompoz [17]

Answer:

The three-point test

Explanation:

The three-point test refers to a ground test utilizing an auxiliary current electrode and an auxiliary potential electrode.

7 0
2 years ago
In what type of radioactive decay does the atomic number of the product decrease by one? Select all that apply.
VladimirAG [237]
The atomic number of the product decrease by one in the d) positron emission and the e) electron capture radioactive decay. These radioactive decays are two of three common forms of the Beta Decay which occurred when the proton released a positron and a neutron emitted an electron<span>. The Beta Decay can increase or decrease the atomic number.</span>
4 0
2 years ago
What do you think about chemistry? define chemistry of the past ?​
Shalnov [3]

Answer: Most people think positively about chemistry. Chemistry has had a good impact on the world, such as the impact of renewable energy, clean water, and technology.

Explanation:

Hope this was helpful :)

5 0
3 years ago
An atom of argon has a radius rar = 88 pm and an average speed in the gas phase at 25°C of 172 m/s.
Rudik [331]

Answer:

1.2* 10³ rNe.

Explanation:

Given speed of neon=350 m/s

Un-certainity in speed= (0.01/100) *350 =0.035 m/s

As per heisenberg uncertainity principle

Δx*mΔv ≥\frac{h}{4\pi }

4π

h

..................(1)

mass of neon atom =\frac{20*10^{-3} }{6.22*10^{-23} } =3.35*10^{-26} kg

6.22∗10

−23

20∗10

−3

=3.35∗10

−26

kg

substituating the values in eq. (1)

Δx =4.49*10^{-8}10

−8

m

In terms of rNe i.e 38 pm= 38*10^{-12}10

−12

Δx=\frac{4.49*10^{-8} }{38*10^{-12} }

38∗10

−12

4.49∗10

−8

=0.118*10^{4}10

4

* (rNe)

=1.18*10³ rN

= 1.2* 10³ rNe.

Explanation:

This is the answer

7 0
2 years ago
How many mL can you make of a .225 M solution if you<br> have 458 mL of a .500 M solution available?
tigry1 [53]
Answer:225000 milliliters

Hope this helps.Sorry id you get this wrong
8 0
3 years ago
Other questions:
  • The flask contains 10.0 mL of HCl and a few drops of phenolphthalein indicator. The buret contains 0.160 M NaOH. It requires 18.
    11·1 answer
  • What's is the difference between relative abundance vs percent abundance
    9·1 answer
  • Given that mass was lost from the copper (ii) carbonate hydroxide hydrate during heating, in this decomposition reaction, how ma
    5·1 answer
  • The mass of an object is 1,000 g. It has a volume of 100 mL. What is the density of the object? D= mass/volume
    11·1 answer
  • Which question can be answered by science A:which type of candy taste best B:which kind of backpack do students purchase most of
    10·1 answer
  • Which of the following destroys the marine ecosystem?
    15·2 answers
  • ANSWER THIS TO BE MARKED BRAINILEST Water in a beaker measures 250 milliliters. A rock is completely submerged in the water. The
    13·1 answer
  • Which element does this Bohr model represent? (look at a periodic table if needed)
    15·1 answer
  • How do weak intermolecular bond strengths affect the melting and boiling point of a substance?
    11·1 answer
  • A cylinder was charged with 1.25 atm of oxygen gas, 6.73 atm of argon, and 0.895 atm of xenon. What is the mole fraction of each
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!