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
Temka [501]
3 years ago
14

Can you please answer this for me please?

Chemistry
1 answer:
monitta3 years ago
6 0

Answer:

Well its B im sorry if im wrong.

Explanation:

You might be interested in
Give the number of significant figures in this number: 7.8 x 10¹²
denis-greek [22]
The number is written in scientific notation.


The significant figures are the numbers known precisely plus 1 digit that is uncertain.


When the numbers are expressed in scientific notation all the digits before  10^n are significant.


So, 7 and 8 are significant figures and the answer is that the number of significant figures is 2.


Answer: 2
8 0
3 years ago
True or false: environmental science concentrates on the study of earth's natural hazards.
algol [13]

The correct answer for this question is 'False'

Environmental science is not the study of the earth's natural hazards

What is Environmental science?

Environmental Science is the study of physical, chemical, biological components of earth's natural environment they include air, water etc.,

The Environmental science closely studies the human impact on the earth's environment.

This field of science also helps us to know about how science effects our environment.

And the 3 main aspects of Environmental science are:

To understand the interaction between humans and environment

To understand how natural world works

To Find a way to deal with the environmental problems to live sustainably.

To know more about environmental science, click here:

brainly.com/question/13254058

#SPJ4

8 0
1 year ago
The Ksp can be used to find the concentration of hydroxide ions, and thus determine the pH given a concentration of of aluminum.
Anton [14]

Answer:

3.9.

Explanation:

(Molar mass of 342.15 g/mol).

The first thing to do in this question is to coverts our units. We are given 6.70 lb = 453.592 × 6.70 lb = 3039.0664 g of aluminum sulfate.

2050 gallons of water = 2050 × 3.785 = 7759.25 Litres.

After this we will now look for the Concentration aluminum sulfate using the formula below:

Concentration = number of moles ÷ volume. ------------------------------------(1).

Recall; Number of moles = 3039.0664/ 342.15 = 8.8823 moles. The volume = 2050 gallons = 7759.25 Litres.

Therefore, slotting in the values of of number of moles and volume into the equation (1) above, we have;

Concentration= 8.8823 moles/ 7759.25 Litres. = 0.001145 M.

The next equation we are going to make use of today is that of the solubilty product that is;

Ksp = (Al^3+) (OH^-)^3.

So, we have the ksp = 1.3 × 10^-33 and the value of (Al^3+)= 0.001145 M.

Hence, making (OH^-) the subject of the formula;

(OH^-) = ( 1.3 × 10^-33 / 0.001145)^1/3.

(OH^-) = 8 × 10^-11 M.

Hence, pOH = - log (OH^-)

pOH = - log (8 × 10^-11).

pOH = 10.1

Therefore, the values of pH is; 1

pH + pOH = 14.

pH = 14 - 10.1 = 3.9.

3 0
3 years ago
Which type of reaction does this diagram represent? (picture)
mihalych1998 [28]

Answer:

condensation

Explanation:

5 0
3 years ago
A gaseous compound has a density of 1.90 g/L at 51.1 ∘C and 1.09 bar . Assuming ideal behavior, calculate the molar mass of the
marysya [2.9K]

Answer:

1.90

Explanation:

5 0
2 years ago
Other questions:
  • For the following reaction in aqueous solution, identify all those species that will be spectator ions. Select all that apply.
    15·1 answer
  • A chemical reaction can start when enough activation energy is added to the reactants. Do you think the activation energy for ch
    11·2 answers
  • How far in advance is weather forecasting most accurate
    6·2 answers
  • What`s the lewis structure for CH3OO?
    6·1 answer
  • What information is given in a chemical formula?
    15·1 answer
  • When matt was is broken down physically by wind or chemically by salt water what is this called
    6·1 answer
  • In which set of elements would all members be expected to have very similar chemical properties?A) O, S, SeB) S, Se, SiC) N, O,
    12·1 answer
  • HELP ME PLEASE WILL MAKE AS BRAINLIES
    5·1 answer
  • Determina a quantidade da agua produzida quando 20 gramas de H2 reage com 8 gramas de O2? a) Indique o reagente limitante ? b) D
    12·1 answer
  • 0.385g of 17Cl is how many atoms?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!