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faltersainse [42]
3 years ago
12

What do you need in order to measure the mass of water

Chemistry
1 answer:
zhuklara [117]3 years ago
3 0

Answer:a graduated cylinder

Explanation:

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Determine if the following compounds are likely to have ionic or covalent bonds. a. Magnesium oxide (MgO) _______________ b. Str
nika2105 [10]

Answer:

The answer to your question is below

Explanation:

Ionic bond is a kind of bond in which a metal attaches to a nonmetal. Also we know that a molecule has ionic bonding if the electronegativity is higher than 1.7.

                    Kind of elements         Difference of electronegativity     Bond

a) MgO         Metal - Nonmetal                3.44 -  1.31 = 2.13                     Ionic

b) SrCl₂        Metal -Nonmetal                  3.16 - 0.95 = 2.21                    Ionic

c) O₃             Nonmetal- Nonmetal          3.44 - 3.44 = 0                      Covalent

d) CH₄O       Nonmetal-Nonmetal           3.44 - 2.55 = 0.89                Covalent

   Carbon, Hydrogen and oxygen are nonmetals

2) Silver coins can conduct electricity.

4 0
2 years ago
2 main reasons why we have<br> seasons.
Ket [755]

Answer:

Tilt of a planet's axis and its orbit around the sun.

Explanation:

hope this helps! :)

3 0
2 years ago
Help pls!!
ankoles [38]

Answer:

C, physical change

Explanation:

take a look at the equation. Next to each form of water do you see the little (g) and (l)? These represent the state of matter the water is in. So, the water is going from a gas to a liquid. The chemical compound is the same so its a physical change, not chemical, and it is reversible. You could change the liquid water back to the gas through evaporation. Endothermic has literally nothing to do with this equation so you can easily eliminate that answer choice.

7 0
3 years ago
¿la densidad de una solución es mayor o menor al agregar agua?
andreev551 [17]

Answer:

La densidad experimenta una disminución

Explanation:

Hola!

En este caso, debemos recordar que la adición de agua incrementa el volumen donde se encuentra un soluto disuelto, el cual posee una cantidad de materia constante. De este modo, sabiendo que la densidad es:

\rho =\frac{m}{V}

Al incrementar el denominador (volumen), la densidad experimenta una disminución, al estar en relación inversamente proporcional.

Muchos saludos!

5 0
3 years ago
The theory of continental drift was widely unaccepted until scientists started using ________ the map the ocean floor.
Bumek [7]

Answer:

B. SONAR (Sound Navigation Ranging)

Explanation:

Just took the test

4 0
3 years ago
Read 2 more answers
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