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
shepuryov [24]
3 years ago
5

What is matter?

Chemistry
2 answers:
emmainna [20.7K]3 years ago
5 0
A. Anything that has mass and takes up space.
belka [17]3 years ago
4 0
A Anything that has mass and takes up space
You might be interested in
Eli states that sodium phosphate is a mixture because it is composed of both sodium ions and phosphate ions.
KonstantinChe [14]

Answer is: c. It is incorrect because sodium phosphate is a compound that has a single composition.

Sodium phosphate is chemical compound composed of atoms connected with chemical bonds.

Pure substance is made of only one type of atom (element) or only one type of molecule (compound), it has definite and constant composition with distinct chemical properties.

Pure substances can be separated chemically, not physically, that is difference between pure substances and mixtures.

7 0
3 years ago
Read 2 more answers
Los hermanos Ana Victoria y José Leonardo están patinando en el hielo, con 25 y 20 kg respectivamente de masa, si Victoria empuj
andreyandreev [35.5K]

Utiliando las leyes de Newton encontraremos que la aceleración de Ana es -1.6 m/s^2.

La segunda ley de Newton dice que:

F = m*a

Fuerza es igual a masa por aceleración.

La tercera ley de Newton dice que cuando dos objetos interactuan, cadan objeto ejerce una fuerza de <u>igual magnitud pero opuesta direccion</u> en el otro.

Ahora veamos como aplicar esto.

Sabemos que la niña empuja al niño, asumamos que con una fuerza F.

Tendremos entonces la ecuación:

F = 20kg*(2m/s^2) = 40N

Y por la tercer ley de Newton, esta misma fuerza (pero en opuesta dirección) se aplica a la niña, entonces tendremos:

-40N = 25kg*a

-40N/25kg = a = -1.6 m/s²

La aceleración con la que retrosede la niña es -1.6 m/s²

Sí quieres aprender más, puedes leer:

brainly.com/question/17123407

3 0
3 years ago
Explain why water is polar. Check all that apply. View Available Hint(s) Water is known as a polar molecule because Check all th
sineoko [7]

Answer:

The correct statements that you must check are:

  • The oxygen atom has a greater attraction for electrons than the hydrogen atom does (second statement).

  • The electrons of the covalent bond are not shared equally between the hydrogen and oxygen atoms (fourth statement).

Explanation:

Electronegativity is the relative ability of an atom to pull the electrons in a covalent bond.

Hydrogen has an electronegativity of 2.20 and oxygen has 3.44. That means that oxygen attracts the electrons more strongly than hydrogen does (second statement).

As consequence, the electrons in the covalent bond H - O of water are not shared equally (fourth statement): the electron density will  be higher around the O atoms.

Of course, this discards the statement telling that hydrogen atom attracts electrons much more strongly than the oxygen atom, and the statement telling that hydrogen and oxigen have same electronegativity.

Such difference in electron densities creates a dipole moment, so you discard the last statement (that the water dipole moment is equal to zero).

7 0
3 years ago
Help me please (~ ̄_ ̄)~​
Lubov Fominskaja [6]

Answer:

1.Temperature is the answer.

Explanation:

Hope this help!!

5 0
2 years ago
Read 2 more answers
In the name carbon dioxide what does the prefix of the second word indicate about a molecule of a dioxide A. It has two carbon a
brilliants [131]

Answer:

The answer is option B, that is, it has two oxygen atoms.

5 0
3 years ago
Other questions:
  • Which statement is true about magnetic poles
    9·2 answers
  • A student is asked to model gas pressure using two walls and a ball connected to a string, as shown. The ball represents a gas p
    13·1 answer
  • A dialysis unit requires 70000 mL of distilled water. How many gallons of water are needed? (1 gal = 4 qt)
    7·2 answers
  • If a weather map has a symbol that shows a circle with an H in the middle, what is it
    13·2 answers
  • Calcium carbonate () is 34.5% Ca by mass. In a 418 g sample of , how many grams of calcium are present?
    9·1 answer
  • How are oxonium salts formed?with reaction​
    14·1 answer
  • A sample of Br2(g) takes 12.0 min to effuse through a membrane. How long would it take the same number of moles of Ar(g) to effu
    8·1 answer
  • Chemosynthesis and photosynthesis are both processes that produce food. <br><br> True or false?
    14·1 answer
  • 100 POINTS!!
    5·2 answers
  • Which of the following is a salt? <br> C6H12O6<br><br> O2<br><br> C2H2<br> K C l
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!