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
schepotkina [342]
3 years ago
5

I dont understand this question can u guys help

Chemistry
2 answers:
diamong [38]3 years ago
6 0

Answer: B

bye

Explanation:

iVinArrow [24]3 years ago
3 0
I think the 4th one
You might be interested in
If the federal government wants to encourage businesses and consumers to spend more money, it would MOST LIKELY
ICE Princess25 [194]
If the federal government wants to encourage businesses and consumers to spend more money, it would most likely to reduce the price of the goods to attract more buyers and sellers
6 0
4 years ago
Read 2 more answers
A sample of 8.11 g 8.11 g of solid calcium hydroxide is added to 38.0 mL 38.0 mL of 0.410 M 0.410 M aqueous hydrochloric acid. W
Andrews [41]

Answer:

The balanced chemical equation :

Ca(OH)_2(s)+2HCl(aq)\rightarrow CaCl_2(aq)+2H_2O(l)

Explanation:

When calcium hydroxide reacts with hydrochloric acid it gives calcium chloride and water as a products. The chemical equation is given as:

Ca(OH)_2+2HCl\rightarrow CaCl_2+2H_2O

According to question, solid calcium hydroxde is added to 38.0 mL of 0.410 M of HCl solution, so the chemical equation can be written as:

Ca(OH)_2(s)+2HCl(aq)\rightarrow CaCl_2(aq)+2H_2O(l)

According to stoichiometry, when 1 mole of solid calcium hydroxide reacts with 1 mole of hydrochloric acid to gives 1 mole of aqueous calcium chloride and 1 mole of water.

4 0
3 years ago
The breakdown of dopamine is catalyzed by the enzyme monoamine oxidase (MAO). What is the final concentration of product if the
kotegsom [21]

Answer:

final concentration: Ca = 0.014 M

Explanation:

Velocity of reaction:

  • ra = K(Ca)∧α = δCa/δt

∴ α: order of reaction, assuming α = 1

∴ K = 0.249 s-1.......rate constant

∴ Cao = 0.050 M......initial concentration

∴ t = 5 s.......reaction time

⇒ δCa/δt = K*Ca

⇒ ∫δCa/Ca = K*∫δt

⇒ Ln(Cao/Ca) = K*t = (0.249s-1)(5 s) = 1.245

⇒ Cao/Ca = 3.473

⇒ Ca = 0.050/3.473

⇒ Ca = 0.014 M

3 0
3 years ago
Read 2 more answers
.35 grams of sodium chloride are dissolved to make 150 milliliters of solution. What is the molarity of the solution?
wariber [46]
NaCl molar mass 58.4 g/mol

moles of NaCl = .35 g * 1 mol/58.4 g = 0.005993 mol
volume of solution = 150 mL = 0.15 L

molarity = mol/vol(in L)
[NaCl] = 0.005933mol/0.15L = 0.03995 M = 0.040 M
6 0
3 years ago
In an electrical circuit, the presence of a resistor limits the current and prevents
bearhunter [10]
True I believe because when the current circuit is at its limit it will be damaged
6 0
3 years ago
Read 2 more answers
Other questions:
  • You burn a 1.5 g jellybean to warm 150 g of water. The temperature of the water increases by 15 °C. Water has a specific heat of
    7·1 answer
  • What is the structural formula of 2-methylbutan-2-ol (sometimes called 2-methyl-2-butanol)?
    13·1 answer
  • Question 21 (2 points)
    10·2 answers
  • Draw structural formula of a tertiary alcohol with the formula C4H8O.
    9·1 answer
  • Explain why a fluorescent light bulb is not as hot as an incandescent light bulb.
    13·2 answers
  • If calcium has the atomic number 20
    14·1 answer
  • why does opening the air valve of a tire at a constant temperature decrease the pressure? A) the temperature decreases B)The vol
    15·1 answer
  • Has anyone done this lab before. Not sure what happens in the last column. Thank you :)
    5·1 answer
  • The temperature program for a separation starts at a temperature of 50 °C and ramps the temperature up to 270 °C at a rate of 10
    7·1 answer
  • When a reaction forms between atoms with ground state electron configuration 1s22s2 and 1s22s22p5 the predominant type of bond f
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!