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
iris [78.8K]
3 years ago
7

Which of these elements is the most chemically reactive?

Chemistry
1 answer:
Angelina_Jolie [31]3 years ago
3 0

Answer:

a zinc is the most reactive

You might be interested in
29.47 mL of a solution of the acid HBr is titrated, and 72.90 mL of 0.2500-M NaOH is required to reach the equivalence point. Ca
Klio2033 [76]

The original concentration of the acid solution is 6.175 \times 10^-4 mol / L.

<u>Explanation:</u>

Concentration is the ratio of solute in a solution to either solvent or total solution. It is expressed in terms of mass per unit volume

                        HBr + NaOH -----> NaBr + H2O

There is a 1:1 equivalence with acid and base.

Moles of NaOH = 72.90 \times 10^-3 \times 0.25

                          = 0.0182 mol.

[ HBr ] = moles of base / volume of a solution

          = 0.0182 / 29.47

          = 6.175 \times 10^-4 mol / L.

4 0
3 years ago
. Which information is NOT included in each square of the periodic table in your text? a. atomic number c. melting point b. chem
azamat
The correct answer is melting point
6 0
4 years ago
A sample of gas has a volume of 2.36 L at a temperature of 53.00 °C. The gas sample is heated to a temperature of 139.00 °C (ass
Liono4ka [1.6K]

Answer:

The volume increases because the temperature increases and is 2.98L

Explanation:

Charles's law states that the volume of a gas is directely proportional to its temperature. That means if a gas is heated, its volume will increase and vice versa. The equation is:

V₁/T₁ = V₂/T₂

<em>Where V is volume and T is absolute temperature of 1, initial state, and 2, final state of the gas.</em>

In the problem, the gas is heated, from 53.00°C (53.00 + 273.15 = 326.15K) to 139.00°C (139.00 + 273.15 = 412.15K).

Replacing in the Charles's law equation:

2.36L / 326.15K= V₂/412.15K

<h3>2.98L = V₂</h3>

<em />

5 0
3 years ago
What is the equation of sodium phosphide
BlackZzzverrR [31]
Na3P is the formula if that helps
6 0
3 years ago
How do scientists classify intrusive igneous features? according to shape, texture, and their distance from the nearest volcanic
Nataliya [291]

according to shape, size, and their relationship to surrounding layers of rock

Explanation:

Scientists classify intrusive features according to their shape, size and relationship to surrounding layers of rocks.

Intrusive igneous features are the sills, di/kes, batholith, laccoiith, lopolith e.t.c

  • When magma cools and solidifies within the earth crust, they form intrusive igneous rocks.
  • Intrusive igneous rocks differs from one another in their shape, size and relationship to surrounding rocks.
  • For example, batholith is a large intrusive body that extends for several kilometers in the earth surface.
  • Sills and di/kes are smaller bodies. Sills forms parallel to orientation of rocks in an area. Di/kes are known to cut across the orientation.

Learn more:

Sedimentary rocks brainly.com/question/2740663

#learnwithBrainly

6 0
3 years ago
Other questions:
  • What volume (in L) of H2 would be collected at 22.0oC and a pressure of 713 torr if 2.65 g of zinc react according to the equati
    5·1 answer
  • #8 please explain if you can<br> thanks
    10·1 answer
  • What type of claim must be supported by scientifically valid evidence for it to be approved for use on a food label? A. Health c
    13·2 answers
  • BALANCE. PCL3+H2O---H3PO3+HCL
    11·1 answer
  • Which element or elements are unbalanced in this equation?
    7·1 answer
  • If you combined neon, argon and helium together, what would you expect to happen?
    11·1 answer
  • Bilang mga dalaga at binata, paano nyo lilinangin ang mga aspeto ng tao na inyong taglay?​
    15·2 answers
  • Based on reference table S, atoms of which of these elements have the strongest attraction for the electrons in a chemical bond?
    13·1 answer
  • Which of the following is true about a redox reaction?
    12·1 answer
  • According to the beer-lambert law, what happens to the absorbance value of a light-absorbing chemical when its concentration inc
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!