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
geniusboy [140]
3 years ago
6

I need to know the answer ASAP PLEASE

Chemistry
1 answer:
ki77a [65]3 years ago
6 0

Answer:

E....H+

Explanation:

coz when hydrogen ions are formed they automatically join to form hydrogen

You might be interested in
A 500-kg elevator is raised to a height of 10 min 10 seconds. Calculate the power of the motor.
nataly862011 [7]
Answer: 49,000 W

Explanation:
3 0
2 years ago
A reaction in which a substance reacts with oxygen, emitting heat and forming oxygen-containing compounds is an example of a(n):
yaroslaw [1]

Answer: B) combustion reaction.

Explanation:

A) acid-base reaction: When an acid reacts with a base, to form metal salt and water, this type of reaction is Acid Base reaction.

Example: HCl+NaOH\rightarrow NaCl+H_2O

B) combustion reaction: When a hydrocarbon reacts with oxygen to produce carbon dioxide and water, this type of reaction is combustion reaction.

CH_4+2O_2\rightarrow CO_2+2H_2O

C) precipitation reaction: a reaction in which aqueous solution of two compounds on mixing react to form an insoluble compound which separate out as a solid are called precipitation reactions.

Na_2SO_4(aq)+BaCl_2(aq)\rightarrow BaSO_4(s)+NaCl(aq)

D) gas evolution reaction: a reaction in which one of the product is formed as a gas.

CaCO_3(s)\rightarrow CaO(s)+CO_2(g)

8 0
3 years ago
A sample of glucose ( C6H12O6 ) of mass 8.44 grams is dissolved in 2.11 kg water. What is the freezing point of this solution? T
taurus [48]

Answer:

<em>- 0.0413°C ≅ - 0.041°C (nearest thousands).</em>

Explanation:

  • Adding solute to water causes the depression of the freezing point.

  • We have the relation:

<em>ΔTf = Kf.m,</em>

Where,

ΔTf is the change in the freezing point.

Kf is the freezing point depression constant (Kf = 1.86 °C/m).

m is the molality of the solution.

<em>Molality is the no. of moles of solute per kg of the solution.</em>

  • <em>no. of moles of solute (glucose) = mass/molar mass</em> = (8.44 g)/(180.156 g/mol) = <em>0.04685 mol.</em>

<em>∴ molality (m) = no. of moles of solute/kg of solvent</em> = (0.04685 mol)/(2.11 kg) = <em>0.0222 m.</em>

∴ ΔTf = Kf.m = (1.86 °C/m)(0.0222 m) = 0.0413°C.

<em>∴ The freezing point of the solution = the freezing point of water - ΔTf </em>= 0.0°C - 0.0413°C = <em>- 0.0413°C ≅ - 0.041°C (nearest thousands).</em>

6 0
3 years ago
ANSWER THE QUESTION BELOW FOR BRAINLEST AND 10 POINTS
Katarina [22]
C :) shshdjehwjdjdjsjsjsbsbbsdp
5 0
2 years ago
Read 2 more answers
The steps of scientific method in order are?
ArbitrLikvidat [17]
The answer is choice B
8 0
3 years ago
Read 2 more answers
Other questions:
  • In the formula for the compound XCl4, the X could represent<br> (1) C (3) Mg<br> (2) Η (4) Zn
    7·2 answers
  • Which of the following gases is NOT found in Earth’s atmosphere?
    5·2 answers
  • What is the name for 3Na2SO4
    12·2 answers
  • Which element easily loses one electron to form a positive ion? A. Magnesium (Mg) B. Lithium (Li) C. Nitrogen (N) D. Fluorine (F
    5·1 answer
  • If 2 or more elements are involved in a chemical reaction, they will most likely form a/an
    5·1 answer
  • Examples of the skills used in science include _____ and _____.
    9·1 answer
  • An atom has 24 protons, 22 electrons, and 28 neutrons. What is the IONIC CHARGE of the atom? *
    15·1 answer
  • Which processes can change metamorphic rock to sedimentary rock?
    15·1 answer
  • Why do the copper square, penny, and the statue of Liberty all soluble in water?
    8·1 answer
  • Isotopes are:
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!