All categories

2 years ago

In which direction are groups on the periodic table? →, ↓, ↘ In which direction are periods on the periodic table?

Chemistry

2 answers:

Vlada [557]2 years ago

8 0

A is the correct answer for periods, B is correct for groups

Sophie [7]2 years ago

5 0

Answer:

For periods a. for groups b.

Explanation:

You might be interested in

7<br>State two signification of melting?

Juliette [100K]

The two liquids are different and so the melting points are different only because one represents an intermediate stage. It was a melting-point suppression effect, just like salt and ice, but it was much larger than anyone on the team had thought possible.

8 0

2 years ago

Out of magnesium and Calcium which element is more reactive give reason

SIZIF [17.4K]

Answer:

Calcium is more reactive.

Explanation:

It is higher in the reactivity series, and contains more energy levels.

5 0

2 years ago

A gas fills a balloon at a temperature of 27 C and 101.325 kPa of pressure. What will the pressure of the balloon be if the gas

JulijaS [17]

135.1‬kPa

Explanation:

Given parameters:

T1 = 27°C

P1 = 101.325 kPa

T2 = 127°C

Unknown:

P2 = ?

Solution:

Using a derivative of the combined gas law where we assume that the gas has a constant volume, we can solve for the unknown.

At constant volume:

$\frac{P1}{T1} = \frac{P2}{T2}$

P1 is the initial pressure

T1 is the initial temperature

P2 is the final pressure

T2 is the final temperature

Take the given temperature to K

T1 = 27 + 273 = 300K

T2 = 127 + 273 = 400K

Input the variables:

$\frac{101.325}{300} = \frac{P2}{400}$

P2 = 135.1‬kPa

learn more:

Boyle's law brainly.com/question/8928288

#learnwithBrainly

3 0

2 years ago

Classify N2 as a substance

ludmilkaskok [199]

N2O is compound becoz it has more than one type of atoms.

<span>Air is homogeneous mixture becoz it has different gases which are does not bonded to each other</span>

6 0

3 years ago

Two reasons why emerging diseases are especially harmful to humans. (is science)

Aleonysh [2.5K]

Answer:

Many emerging diseases arise when infectious agents in animals are passed to humans (referred to as zoonoses). As the human population expands in number and into new geographical regions, the possibility that humans will come into close contact with animal species that are potential hosts of an infectious agent increases.

Explanation:

7 0

2 years ago

In which direction are groups on the periodic table? →, ↓, ​↘​ In which direction are periods on the periodic table?

In which direction are groups on the periodic table? →, ↓, ↘ In which direction are periods on the periodic table?