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
DochEvi [55]
3 years ago
8

According to Dalton's atomic theory, which statement is true about atoms of the same element? They can be destroyed. They have i

dentical mass. They have different properties. They can be divided into elements.
Chemistry
2 answers:
Natali5045456 [20]3 years ago
8 0

Answer:

The correct statement is :They have identical mass.

Explanation:

  • Matter is composed of smallest indivisible particle named atom.
  • Atoms of same element have similar size , mass and chemical proprieties where as different atoms of different element differ in all those properties.
  • An atom cannot be created or destroyed or further sub divided.
  • Atoms of different elements combines together in a fixed ratio to from compounds.
  • During a chemical reaction atoms are rearranged to form a new compounds.
natulia [17]3 years ago
3 0
They have identical mass!
You might be interested in
Which of the following rocks would probably be made up of the largest
IrinaVladis [17]

Answer:

Granite will be made up of the largest

8 0
3 years ago
100 mL of a 0.4 M solution
Nitella [24]

Answer:

99.6

Explanation:

7 0
2 years ago
A chemical reaction was used to produce 2.95 moles of copper(II) bicarbonate, Cu(HCO3)2.
BARSIC [14]

Answer:

About 547 grams.

Explanation:

We want to determine the mass of copper (II) bicarbonate produced when a reaction produces 2.95 moles of copper (II) bicarbonate.

To do so, we can use the initial value and convert it to grams using the molar mass.

Find the molar mass of copper (II) bicarbonate by summing the molar mass of each individual atom:

\displaystyle \begin{aligned} \text{MM}_\text{Cu(HCO$_3$)$_2$} &= (63.55 + 2(1.01)+2(12.01)+6(16.00))\text{ g/mol} \\ \\  &=185.59\text{ g/mol} \end{aligned}

Dimensional Analysis:

\displaystyle 2.95\text{ mol Cu(HCO$_3$)$_2$}\cdot \frac{185.59 \text{ g Cu(HCO$_3$)$_2$}}{1 \text{ mol Cu(HCO$_3$)$_2$}} \Rightarrow 547 \text{ g Cu(HCO$_3$)$_2$ }

In conclusion, about 547 grams of copper (II) bicarbonate is produced.

8 0
3 years ago
4. If the DNA nitrogen bases were TACCGGAT, how would the other half of
Illusion [34]

Answer:

<u>ATGGCCTA</u>

Explanation:

For this we have to keep in mind that we have a <u>specific relationship between the nitrogen bases</u>:

-) <u>When we have a T (thymine) we will have a bond with A (adenine) and viceversa</u>.

-) <u>When we have C (Cytosine) we will have a bond with G (Guanine) and viceversa</u>.

Therefore if we have: TACCGGAT. We have to put the corresponding nitrogen base, so:

TACCGGAT

<u>ATGGCCTA</u>

<u></u>

I hope it helps!

3 0
3 years ago
Which substance can not be decomposed by a chemical change?
max2010maxim [7]
B. Copper since the rest of the choices are compounds. Copper is an element.
5 0
3 years ago
Read 2 more answers
Other questions:
  • -----question will give medal-----
    6·2 answers
  • What invention helped to contribute to the start of the civil war
    13·2 answers
  • What is the empirical formula of a substance that contains 8.33×10−2 mol of carbon, 0.167 mol of hydrogen, and 8.32×10−2 mol of
    5·2 answers
  • Which conclusion could be made from Ernest Rutherford's gold foil experiment?
    13·2 answers
  • A factory discharges clean, warm water into a nearby stream. Fish keep dying in this part of stream. Explain why.
    9·1 answer
  • The bouncing of light when is changes media is called what
    15·2 answers
  • Write the molecular and net ionic equations, including phases, for the reaction that occurs between aqueous sodium chloride, NaC
    5·2 answers
  • How many grams of the reactant water is needed to make 800.00g of calcium carbonate? The balance equation is:
    13·1 answer
  • What evidence can be used to explain the type of mutualistic relationship present between the water buffalo and frog?
    14·1 answer
  • SSA PRACTICE QUESTION
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!