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
lutik1710 [3]
3 years ago
5

Which of dalton's postulates about atoms are inconsistent with later observations? do these inconsistencies mean that dalton was

wrong? is dalton's model still useful? explain?
Chemistry
1 answer:
Neporo4naja [7]3 years ago
6 0

1)  Dalton stated that atom is matter that can not be divided, but it is proved that the atom can be divided into subatomic particles  (electrons, protons and neutrons).

2) He stated that atoms of one element can not be changed into atoms of other  elements, but now that is possible by nuclear reactions.

Today we still use his postulate: Atoms combine in the ratio of small whole numbers to form stable compounds, for example H₂O.

You might be interested in
A balance is used to measure mass
FrozenT [24]

if this is true or false its true hope i helped

6 0
3 years ago
1. How many milliliters of 10.0 M HNO 3 are needed to prepare 0.350 L of 0.400 M solution?
tatyana61 [14]
<h3>Answer:</h3>

14 milliliters

<h3>Explanation:</h3>

We are given;

  • 10.0 M HNO₃

Prepared solution;

  • Volume of solution as 0.350 L
  • Molarity as 0.40 M

We are required to determine the initial volume of HNO₃

  • We are going to use the dilution formula;
  • The dilution formula is;

M₁V₁ = M₂V₂

Rearranging the formula;

V₁ = M₂V₂ ÷ M₁

    =(0.40 M × 0.350 L) ÷ 10.0 M

   = 0.014 L

But, 1 L = 1000 mL

Therefore,

Volume = 14 mL

Thus, the volume of 10.0 M HNO₃ is 14 mL

5 0
3 years ago
An earthquake’s magnitude is a measure of the
marissa [1.9K]
An earthquake's magnitude is a measure of how much energy an earthquake releases. Typically, the richter scale is used.
8 0
3 years ago
Read 2 more answers
What is the pH of a solution in which [H 3O +] = 3.8 × 10 -8 M?
7nadin3 [17]

Answer:

<h3>The answer is 7.42 </h3>

Explanation:

The pH of a solution can be found by using the formula

pH = - log [ { H_3O}^{+}]

From the question we have

pH =  -  log(3.8 \times  {10}^{ - 8} )  \\  = 7.420216...

We have the final answer as

<h3>7.42 </h3>

Hope this helps you

4 0
3 years ago
Which is a NOT a freshwater source on Earth?
cluponka [151]

Answer:

B the atmosphere it's not on earth and I'm pretty sure  the atmosphere doesn't have water in

Explanation:

7 0
3 years ago
Other questions:
  • What is the oxidation state of each element in FeBr2
    14·2 answers
  • What is the mass (in grams) of 9.09x10^24 molecules of methanol (CH3OH)?
    15·1 answer
  • Consider the motion diagram. It illustrates a car's velocity (V) and acceleration (A). The BEST description of a car’s velocity
    7·2 answers
  • Which of the following is true about a redox reaction?
    12·1 answer
  • 1- DILUTIONS What will the volume be of a solution created using 120 mL of 4.50 M stock solution if the final molarity needs to
    11·1 answer
  • Cyclopropane, a substance used with oxygen as a general anesthetic, contains only two elements, carbon and hydrogen. When 1.00 g
    12·1 answer
  • (7) need help asappp plss
    6·1 answer
  • Choose the word that correctly completes the analogy.
    5·1 answer
  • A mixture of 2.0 mol of CO(g)? and 2 mol of H2O?(g)? was allowed to come to equilibrium in a 1.0L flask at a high temperature. I
    9·1 answer
  • I NEED HELP ASAP!!!!!! LIKE RIGHT NOW PLEASE HELP!!!!! TwT
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!