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
Fofino [41]
2 years ago
6

A compound formed with potassium and bromine that can detect blood in a stain by reacting with it to form distinctive crystals

Chemistry
1 answer:
wel2 years ago
7 0

Answer:

Potassium Bromide

Explanation:

not sure but i think thats it

You might be interested in
200.0 mL of 3.85 M HCl is added to 100.0 mL of 4.6 M barium hydroxide. The reaction goes to completion. What is the concentratio
Ede4ka [16]

Answer:

2.387 mol/L

Explanation:

The reaction that takes place is:

  • 2HCl + Ba(OH)₂ → BaCl₂ + 2H₂O

First we <u>calculate how many moles of each reagent were added</u>:

  • HCl ⇒ 200.0 mL * 3.85 M = 203.85 mmol HCl
  • Ba(OH)₂ ⇒ 100.0 mL * 4.6 M = 460 mmol Ba(OH)₂

460 mmol of Ba(OH)₂ would react completely with (2*460) 920 mmol of HCl. There are not as many mmoles of HCl so Ba(OH)₂ will remain in excess.

Now we <u>calculate how many moles of Ba(OH)₂ reacted</u>, by c<em>onverting the total number of HCl moles to Ba(OH)₂ moles</em>:

  • 203.85 mmol HCl * \frac{1mmolBa(OH)_{2}}{2mmolHCl}= 101.925 mmol Ba(OH)₂

This means the remaining Ba(OH)₂ is:

  • 460 mmol - 101.925 mmol = 358.075 mmoles Ba(OH)₂

There are two OH⁻ moles per Ba(OH)₂ mol:

  • OH⁻ moles = 2 * 358.075 = 716.15 mmol OH⁻

Finally we <u>divide the number of OH⁻ moles by the </u><u><em>total</em></u><u> volume</u> (100 mL + 200 mL):

  • 716.15 mmol OH⁻ / 300.0 mL = 2.387 M

So the answer is 2.387 mol/L

7 0
3 years ago
Sandy was cooking beans for dinner and heard they cook faster if baking soda is added to the water. is adding baking soda a good
Strike441 [17]
No she should add salt to the water
3 0
3 years ago
if the spin of one electron in an orbital is clockwise , what is the spin of the other electron in that orbital
nata0808 [166]

Here we have to get the spin of the other electron present in a orbital which already have an electron which has clockwise spin.

The electron will have anti-clockwise notation.

We know from the Pauli exclusion principle, no two electrons in an atom can have all the four quantum numbers i.e. principal quantum number (n), azimuthal quantum number (l), magnetic quantum number (m) and spin quantum number (s) same. The importance of the principle also restrict the possible number of electrons may be present in a particular orbital.

Let assume for an 1s orbital the possible values of four quantum numbers are n = 1, l = 0, m = 0 and s = \frac{+}{-}\frac{1}{2}.

The exclusion principle at once tells us that there may be only two unique sets of these quantum numbers:

1, 0, 0, +\frac{1}{2} and 1, 0, 0, -\frac{1}{2}.

Thus if one electron in an orbital has clockwise spin the other electron will must be have anti-clockwise spin.    

6 0
3 years ago
Is all air pollution caused by humans
larisa86 [58]
Well partly yes because air pollution can happen when we burn fossil fuels, it can happen when we use vehicles and household/farming chemicals can cause air pollution so yes it is caused by humans
4 0
3 years ago
Read 2 more answers
What Type of reaction is this equation <br> C2H5S + O2 ---&gt; CO2 + H2O + SO2
sweet-ann [11.9K]
I think it might be a decomposition.
4 0
3 years ago
Read 2 more answers
Other questions:
  • if you could place a piece of solid silver into a container of liquid silver, would it float or sink? expain. (please answer if
    15·1 answer
  • Nitroglycerine decomposes violently according to the chemical equation below. What mass of carbon dioxide gas is produced from t
    12·1 answer
  • Need help plzz
    8·1 answer
  • What is the concentration in g/L of a solution containing 10 g of solute in 2 L of solution
    10·1 answer
  • Which part of the atom is directly involved in chemical changes? A. the electron B. the energy levels C. the nucleus D. the char
    14·1 answer
  • How much greater is the pressure at the deepest part of the ocean compared to that found at sea level?
    8·2 answers
  • Which of the following best describes a hypothesis?
    10·2 answers
  • In coca cola the ingridents are : CARBONATED WATER.
    9·1 answer
  • 2 K + Cl2 → 2 KCI what type of chemical reaction is this
    9·2 answers
  • Determine the theoretical yield of PbCh2
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!