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
neonofarm [45]
3 years ago
11

Please help! due like now!

Chemistry
1 answer:
grin007 [14]3 years ago
4 0

Answer:

The correct answer is Heat.

You might be interested in
Why are lab rules important
valentina_108 [34]

Answer:

Because you can die if you dont be safe my guy.

If you dont

be safe in a lab it can be very dangerus and some times even deadly.

Tyler is gay

6 0
3 years ago
Read 2 more answers
What is the boiling point of a solution that contains 3 moles of KBr in 2000 g of water?
bija089 [108]

Answer:

C. 101.5°C

Explanation:

The computation of the boiling point of a solution is shown below:

As we know that

\Delta T = i K_bm

where,

i = Factor of Van’t Hoff i.e 2KBr

K_b = Boiling point i.e 0.512° C

m = molality  = \frac{Moles\ of\ solute}{Solvent\ mass}

Now place the values to the above formula

So, the boiling point is

(T - 100^\circ C) = 2\times 0.512^\circ \times \frac{3.00\ ml}{2.00\ kg}

After solving this, the t is

= 100° C + 1.536° C

= 101.536° C

Hence, the correct option is C.

5 0
3 years ago
Clear
maks197457 [2]

Zirconium - 96 isotope is formed from the beta decay of zirconium-97 , Option C is the correct answer .

<h3>What are Isotopes ?</h3>

Atoms are composed of a cloud of electrons surrounding a dense nucleus that is 100,000 times smaller and comprised of protons and neutrons.

The number of protons(i.e., atomic number, "Z") determines the element.

Isotopes are atoms of the same element that have the same number of protons (i.e., atomic number, "Z") but a different number of neutrons, meaning that their mass number, "A", varies.

Naturally occurring zirconium (⁴⁰Zr) is composed of four stable isotopes

One very long-lived radio isotope (⁹⁶Zr), a primordial nuclide that decays via double beta decay with an observed half-life of 2.0×10¹⁹ years

The second most stable radioisotope is ⁹³Zr, which has a half-life of 1.53 million years.

Thirty other radioisotopes have been observed.

All have half-lives less than a day except for ⁹⁵Zr (64.02 days), ⁸⁸Zr (83.4 days), and ⁸⁹Zr (78.41 hours).

The primary decay mode is electron capture for isotopes lighter than ⁹²Zr

and the primary mode for heavier isotopes is beta decay.

Therefore Zirconium - 96 isotope is formed from the beta decay of zirconium-97 , Option C is the correct answer .

To know more about Isotope

brainly.com/question/11680817

#SPJ1

3 0
2 years ago
according to you what is a safe school environment ? Reflect on how your school can be made a safe and healthy place for learnin
svetoff [14.1K]

Answer:

No weapons or drugs. Having responsible teachers

6 0
3 years ago
How many bonds are formed between 2 Hydrogen atoms in an H2 molecule?
exis [7]
<h3>Answer:</h3>

Have a <em>strong</em><em> </em><em><u>polar</u></em><em><u> </u></em><em><u>attractio</u></em><em><u>ns</u></em><em><u> </u></em>between <em><u>molecule</u></em><em><u>'s</u></em><em><u> </u></em><em><u> </u></em><em><u>involvin</u></em><em><u>g</u></em><em><u> </u></em><em><u>H</u></em><em><u>,</u></em><em><u> </u></em><em><u>F</u></em><em><u>,</u></em><em><u> </u></em><em><u>O</u></em><em><u> </u></em><em><u>and</u></em><em><u> </u></em><em><u>N</u></em><em><u>.</u></em>

SUBMIT!

<em><u>hope</u></em><em><u> </u></em><em><u>it</u></em><em><u> </u></em><em><u>help</u></em><em><u>s</u></em>

4 0
3 years ago
Other questions:
  • Bases increase the concentration of hydronium ions by donating hydroxide ions to water molecules.
    9·1 answer
  • How much heat is evolved in converting 1.00 mol of steam at 145.0 ∘C to ice at -55.0 ∘C? The heat capacity of steam is 2.01 J/(g
    6·1 answer
  • At constant pressure, which of these systems do work on the surroundings? Check all that apply.
    12·1 answer
  • If 5.1 l of antifreeze solution (specific gravity = 0.80) is added to 3.8 l of water to make a 8.9 l mixture, what is the specif
    15·1 answer
  • what is the best description of weathering? A. breakdown of rocks through mechanical or chemical processes. B.when rocks layers
    5·1 answer
  • A rectangular steel block of dimension 100cm × 50m × 20cm has a mass of 450kg. Calculate the density.
    10·1 answer
  • Calculate [H3O+] and [OH−] for each of the following solutions at 25 ∘C given the pH.<br> pH= 2.89
    6·1 answer
  • What is the atomic mass of element XX if 3.6 moles of the substance has a mass of 192 grams?
    9·1 answer
  • Khi cho anken phản ứng với nước có thể tạo ra ancol bậc
    14·1 answer
  • Q is a solution of HCl containing 0.12 mol.dm^-3. P is a solution of Na2CO3 of unknown concentration. Solution Q was titrated ag
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!