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
madam [21]
3 years ago
6

A water sample consists of the following cadmium species and their percentages of the total cadmium concentration: Cd2 (36 %); C

dHCO3- (14 %); CdCl- (25 %); and Cd(OH)2 (25 %). What percentage of Cd is toxic to aquatic organisms
Chemistry
1 answer:
Nata [24]3 years ago
5 0

Answer:

61%

Explanation:

Cd2+ and CD(OH)2 both contain the Cd2+ specie which is chemically similar to Zn2+both being in the same group in the periodic table. Cd2+ is know to be toxic when absorbed together with Zn 2+ ions and will definitely be toxic to the aquatic species.

You might be interested in
43 milliliters of water weighs 43 g. what is the density of the water?
Anastaziya [24]

Answer:

\rho =1g/mL

Explanation:

Hello,

In this case, since the density is defined as the ratio between the mass and the volume as shown below:

\rho =\frac{m}{V}

We can compute the density of water for the given 43 g that occupy the volume of 43 mL:

\rho =\frac{43g}{43mL}=1g/mL

Regards.

4 0
3 years ago
What is the most likely formula for an oxide formed between group a 1 atom x and oxygen
Marizza181 [45]
The most likely formula for an oxide formed between group 1a atom X and oxygen would be

X2O. - X is group 1a atom.
5 0
3 years ago
Help please !!!
docker41 [41]
Increase the force they are using to move the box by adding more helpers

Explanation:
If you want to increase the speed that the box is moving, increasing the friction would make it more difficult, decreasing the force they are using would just make it slower and increasing the angle of the ramp would make it harder. Adding more people would make it easier. “The more the merrier”
3 0
3 years ago
What is the molarity of a solution that contains 148g NaOH in 4.00 L solution? a 0.925 M b 0.0253 M c 0.459 M d 1.363 M
Anton [14]

Answer:

M = 0,925

Explanation:

n= mass/Molecular Weight

n = 148g / 39,99 (g/mol)

n= 3,7mol

M= n/Volumen(L)

M= 3,7mol/4L

M=0,925

8 0
3 years ago
___Fe + ___O2 →___Fe2O3 Your old bike left out in the rain starts to rust. What coefficients fill in the blanks to balance the e
Diano4ka-milaya [45]
D) 4Fe + 3O2 -> 2Fe3O3
4 0
3 years ago
Read 2 more answers
Other questions:
  • A sealed vessel containing sulfur dioxide and nitrogen has a total pressure of 520 Torr and partial pressures of 266 Torr nitrog
    8·1 answer
  • If a drug caused a sudden release of large amounts of calcium in skeletal muscle, from which structure would the calcium come?
    8·2 answers
  • Which question must be answered to complete the table below?
    9·1 answer
  • If a liquid has a density of 1200 g/l what is it’s density in charge/ml
    10·1 answer
  • What characteristic of an epic hero does this passage
    15·1 answer
  • Draw a Lewis Dot Structure for the following element P
    15·1 answer
  • How many molecules are there in 560 grams of CoCl2?​
    12·1 answer
  • carbon-dating was performed on an artefact that was found to have 25% of the original carbon-14 remaining in it
    7·1 answer
  • Perform the following operation
    11·1 answer
  • W(OH)2 + 2 HCl → WCl2 + 2 H2O
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!