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
STatiana [176]
3 years ago
9

English schoolteacher who proposed the atomic theory model of matte

Chemistry
2 answers:
Evgesh-ka [11]3 years ago
7 0
John Dalton was an English chemist, physicist, and meteorologist. Dalton was one of the first scientists to discover that all matter is made up of atoms and he formulated the atomic theory. Dalton; John Dalton was the first to suggest the mass of one atom of hydrogen as the atomic mass unit.
Lyrx [107]3 years ago
3 0

Answer:

John Dalton

Explanation:

hope it helps

You might be interested in
What will happen to the volume of a gas if the Kelvin temperature of the gas is reduced to 1/4 of the original temperature and t
Temka [501]

Answer:

the volume of the gas will be 1/8 of the original value

Explanation:

7 0
3 years ago
Sugar dissolves when stirred into water. the sugar is the ______, the water is the ______, and the sweetened water is the ______
olya-2409 [2.1K]
<span>B) solute... solvent... solution</span>
3 0
3 years ago
Read 2 more answers
37) Which chemical equation is correctly balanced?
aliina [53]

Answer: c) 2\text{Na}_{3}\text{PO}_{4}+3\text{CaCl}_{2} \longrightarrow 6\text{NaCl}+\text{Ca}_{3}\text{(PO}_{4})_{2}

7 0
2 years ago
I’m having trouble with this assignment please help.
shutvik [7]

Q = m.c.AT

m = 50,0 g of iron

c = 0.450 J.g-1°C-1

AT = 10°C

Thus

Q = 50 * 0.450 * 10

Q = 225 J

Is the heat energy

Hope it helps xx

3 0
4 years ago
A sample of gas has a mass of 38.8 mg. Its volume is 224 mL at a temperature of 55 °C and a pressure of 886 torr. Find the molar
Pie

Answer:

4g/mol

Explanation:

Firstly, we can get the number of moles of the gas present using the ideal gas equation.

PV = nRT

Here:

P = 886 torr

V = 224ml = 224/1000 = 0.224L

T = 55 degrees celcius= 55+ 273.15 = 328.15K

R = molar gas constant = 62.36 L⋅Torr⋅K−1⋅mol−1

n = PV/RT

n = (886 * 0.224)/(62.36 * 328.15)

n = 0.009698469964 mole

Now to get the molar mass, this is mathematically equal to the mass divided by the number of moles. We have the mass and the number of moles, remaining only the molar mass.

First, we convert the mass to g and that is 38.8/1000 = 0.0388

The molar mass is thus 0.0388/0.009698469964 = 4g/mol

3 0
4 years ago
Other questions:
  • A 3.00-liter sample of gas is at 288 K and 1.00 atm. If the pressure of the gas is increased to 2.00 atm and its volume is decre
    10·1 answer
  • Which of the following has more energy than visible light? radio waves microwaves infrared light gamma rays
    10·1 answer
  • Which of the following statements correctly expresses Collision Theory
    10·1 answer
  • A sample of oxygen gas is collected over water at 25°C and a total pressure of 644 torr. The volume of the gas collected is 500.
    5·1 answer
  • The newest US standard for arsenate in drinking water, mandated by the Safe Drinking Water Act, requires that by January, 2006,
    12·1 answer
  • 1. The sum of the masses on the reactant side must equal
    7·2 answers
  • Transfer RNA __________. A is translated into protein B tags a growing polypeptide for export to the endoplasmic reticulum C is
    12·1 answer
  • A specific region of an enzyme where a substrate binds and the chemical reaction occurs.
    9·1 answer
  • What method would be the best choice for a climatologist to find out what the ocean temperatures were like during the Pleistocen
    6·1 answer
  • Question 4
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!