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
Citrus2011 [14]
3 years ago
10

I have the smallest atomic number of all the

Chemistry
1 answer:
lakkis [162]3 years ago
7 0
Hydrogen is the element with the smallest atomic number. Please name be brainliest?!
You might be interested in
The temperature of a 100.0 g sample of water is raised from 30degrees celsius to 100.0 degrees celsius. How much energy is requi
worty [1.4K]

Answer:

29260J

Explanation:

Given parameters:

Mass of water sample  = 100g

Initial temperature = 30°C

Final temperature  = 100°C

Unknown:

Energy required for the temperature change = ?

Solution:

The amount of heat required for this temperature change can be derived from the expression below;

     H  = m c (ΔT)

H is the amount of heat energy

m is the mass

c is the specific heat capacity of water  = 4.18J/g°C

ΔT is the change in temperature

Now insert the parameters and solve;

          H  = 100 x 4.18 x (100 - 30)

          H  = 100 x 4.18 x 70 = 29260J

6 0
2 years ago
What is a solubility?
kogti [31]

Answer:the ability to be dissolved, especially in water.

Explanation:

6 0
3 years ago
Find the ph of of 100 ml of an aqueous 0.43m baoh2 solution
denpristay [2]
Answer is: pH of barium hydroxide is 13.935.
Chemical dissociation of barium hydroxide in water:
Ba(OH)₂(aq) → Ba²⁺(aq) + 2OH⁻(aq).
c(Ba(OH)₂) = 0.43 M.
V(Ba(OH)₂) = 100 mL ÷ 1000 mL/L = 0.1 L.
n(Ba(OH)₂) = 0.43 mol/L · 0.1 L.
n(Ba(OH)₂) = 0.043 mol.
From chemical reaction: n(Ba(OH)₂) : n(OH⁻) = 1 : 2.
n(OH⁻) = 0.086 mol.
c(OH⁻) = 0.86 mol/L.
pOH = -logc(OH⁻).
pOH = 0.065.
pH = 14 - 0.065 = 13.935.
4 0
3 years ago
Why phenolphthalein is used in experiment?
Dominik [7]
In an acid-base titration, the neutralization reaction between the acid and base can be measured with either a color indicator or a pH meter. In this experiment, aphenolphthalein<span> color indicator will be </span>used<span>.
 </span>Phenolphthalein<span> is colorless in acidic solutions and pink in basic solutions.
Hope this helped 
: )</span>
4 0
3 years ago
A solution contains 90 mL of methanol, 18 mL of propanol, and 2 mL of diethyl ether. Which is the solvent in this solution?
otez555 [7]

Answer:

Methanol

Explanation:

5 0
3 years ago
Other questions:
  • Suppose you need to prepare 141.9 mL of a 0.223 M aqueous solution of NaCl. What mass of NaCl do you need to use to make the sol
    14·1 answer
  • Which state of matter is charcterized with no volume?
    7·1 answer
  • What is one way to tell if a mineral is an element?
    5·1 answer
  • Which group has the highest ionization energies? Explain why.
    11·1 answer
  • How are theres over 2,500 different minerals why?
    15·1 answer
  • Which of the following lists stars in order of increasing size?
    5·2 answers
  • PLEASE HELP!!! I will mark brainliest I am really struggling with these problems
    14·1 answer
  • Which are functions of the stomata in the leaves of seed plants? Check all that apply.
    13·2 answers
  • Help?
    11·1 answer
  • Which TWO properties of water make it
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!