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
galben [10]
3 years ago
14

Please Help!!

Chemistry
2 answers:
drek231 [11]3 years ago
6 0

I believe that the best answer among the choices provided by the question is B. the density of freshwater remains constant as temperature decreases

nataly862011 [7]3 years ago
4 0
It’s b. The density of freshwater remains constant as temperature decreases.
You might be interested in
Help please!! I'll name you brainliest!!
Inessa05 [86]

the answers is cacih2

wjdgagqjdhdgahahdhvddvvsvshsd

7 0
3 years ago
A student wants to make a 0.150 M aqueous solution of silver (I) nitrate but only has 11.27 g of AgNO3. What volume of the 0.150
Usimov [2.4K]

Answer:

442.3 mL

Explanation:

Remember that Molarity is a measure of concentration in Chemistry and it's defined as the number of moles of the substance divided by liters of the solution:

M=\frac{Moles of substance X}{Volume of the solution}

Then, you can express 11.27 g of AgNO3 as moles of AgNO3 using the molar mass of the compound:

11.27 g AgNO_{3} *\frac{1 mole AgNO_{3}}{169.87 g AgNO_{3}} = 0.06634 moles AgNO_{3}

Then you can solve for the volume of the solution:

Volume of the solution=\frac{Moles of AgNO_{3}}{M} =\frac{0.06634 mol AgNO_{3}}{0.150 M} =0.4423 L = 442.3 mL

Hope it helps!

3 0
3 years ago
What is the oxidation number of HCLO4?
ki77a [65]
E.g. in H3PO4 (O, -2).
8. The sum of the oxidation states of all the atoms in a species must be equal to net charge on the species. e.g. Net Charge of HClO4 = 0, i.e. [+1(H)+7(Cl)-2<span>*4(O)] = 0.</span>
4 0
3 years ago
A molecule has sp2 hybridization with 1 lone pair.... The electron pair geometry of this molecule is: ... The geometry of this m
MrRa [10]

Answer:

The electron pair geometry is Trigonal planar

Molecular geometry - Bent

Approximate bond angle - <120°

Explanation:

The valence shell electron pair repulsion theory enables us to predict the shapes of molecules based on the number of electron pairs present on the valence shell of the central atom and based on the hybridization state of the central atom.

sp2 hybridization corresponds to trigonal planar geometry. Let us recall that the presence of lone pairs causes a deviation of the molecular geometry from the expected geometry based on the number of electron pairs.

Hence, owing to one lone pair present, the observed molecular geometry is bent.

6 0
2 years ago
. The speed of a sound in air is 343 m/s. The sound wave has a frequency of 436 HZ and its period is 0.0023 s. What is the wavel
Taya2010 [7]

Answer: 0.79

Explanation:

6 0
3 years ago
Other questions:
  • How many atoms are in 1/2 mole of calcium
    13·1 answer
  • Describe the stages of gradual metamorphosis
    5·1 answer
  • The simplest unit of matter that still retains the properties of an element is a(n) _____.
    13·1 answer
  • Given that the vapor pressure of water is 17.54 torr at 20 °c, calculate the vapor-pressure lowering of aqueous solutions that a
    6·1 answer
  • In a chemical reaction, which are the most likely products of these reactants 4Fe+302
    15·1 answer
  • A given atom has 3 protons, 4 neutrons, and 3 electrons. Describe how you can use those three values to describe the structure,
    11·1 answer
  • EXPLAIN: How a convection current transports energy around the globe.
    10·1 answer
  • What is the definition of nuclear energy???
    15·2 answers
  • A _____ is a place where magma reaches Earth's surface to become lava, which can come out of an opening called a _____. A. crate
    11·2 answers
  • Which is sign that work is being done
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!