Please help me!! Look at the picture to understand the question please!

Chemistry

1 answer:

Romashka-Z-Leto [24]3 years ago

5 0

Answer:

C. I

Explanation:

The elements are categorized in groups and periods. The periods are horizontal and the groups are vertical. The elements in the same group (vertical) have very similar characteristics.

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eimsori [14]

Distance and period of time

6 0

3 years ago

A piece of glass is immersed in a liquid. It proceeds to float on the liquid's surface. This shows that the density of the glass

tamaranim1 [39]

Answer: b) Less dense

Explanation:

Differences in density is one reason objects float or sink.

An object more dense than the fluid in which it is immersed will sink, while objects less dense than the fluid in which it is immersed will float to the surface.

But objects floats at constant level if the density is equal to the density of the fluid in which it is immersed; it neither rises nor sinks in the fluid in this case.

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Which of the following statements correctly describes the relationship between volume and temperature( moles and pressure of gas

lorasvet [3.4K]

Answer:

pressure of gas are constant describe the relationship between moles and temprature

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3 years ago

Facts about heat absorption and simple questions about heat absorption with answer

Mariulka [41]

As heat energy reaches an object it can be absorbed in a similar manner to the way sponges absorb water. Heat enters an object, warming it. The longer the object is exposed to the heat source, the more heat it absorbs.

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3 years ago

Acid & Base Calculations Calculate the hydronium ion concentration for each. Tell whether it is an acid or a base. 1. pH = 5

Anuta_ua [19.1K]

Explanation:

pH is the negative logarithm of hydronium ion concentration present in a solution.

If the solution has high hydrogen ion concentration, then the pH will be low and the solution will be acidic. The pH range of acidic solution is 0 to 6.9
If the solution has low hydrogen ion concentration, then the pH will be high and the solution will be basic. The pH range of basic solution is 7.1 to 14
The solution having pH equal to 7 is termed as neutral solution.

To calculate the pH of the solution, we use equation:

$pH=-\log[H_3O^+]$ ......(1)