The weather changed from cold to warm. Jessica was excited because should could wear her new flip flops and shorts to school. She had her science laboratory later in the day.

What should she do to be safe?

Answer: When we represent a chemical reaction in terms of words, we write a word equation. For example, when hydrogen gas reacts with oxygen gas to form water, we can write a word equation for the reaction as follows: hydrogen + oxygen→ water To the left of the arrow, we have the 'before' situation.

Explanation:

Option B, P and Cl

They form covalent bond

Answer:

Is there a question you need help with?

16

protons

18

neutrons

16

electrons

Right from the start, you know that you're indeed dealing with a neutral atom, since the number of protons it has in its nucleus is equal to the number of electrons it has surrounding its nucleus.

Now, an atom's atomic number,  

Z

, tells you how many protons it has in its nucleus. Nothing more, nothing less.

In your case, you are told that the atom contains  

16

protons in its nucleus, which means that  

Z

will be equal to

Z

=

16

A quick look in the periodic table will reveal that you're dealing with an atom of sulfur,  

S

.

An atom's mass number,  

A

, tells you how many protons and neutrons it contains in its nucleus. Since the number of protons is given by  

Z

, you can say that

A

=

Z

+

no. of neutrons

In your case, the atom contains  

18

neutrons in its nucleus. This means that  

A

will be equal to

A

=

16

+

18

=

34

Finally, focus on the atom's electron configuration, which you know that must account for a total of  

16

electrons.

S:  

1

s

2

2

s

2

2

p

6

3

s

2

3

p

4

Its noble gas shorthand notation, which uses the electron configuration of neon,  

Ne

, the noble gas that comes before sulfur in the periodic table, will look like this

S:  

[

Ne

]

3

s

2

3

p

4

c. Potential decreases and kinetic increases.

Explanation:

As the boulder is rolling down the hill, potential energy decreases as kinetic energy increases.

Answer:

Used as rocket fuel, is a fertilizer ingredient, used in cooking, used to provide lighting, and used in production of other compounds

Explanation:

Hope this helps!!!

Explanation:

a cl chlorine

b NH3 ammonia

c co2 carbon dioxide

d H hydrogen

e o oxygen

Answer:

Explanation:

The density of a substance can be found by using the formula

[tex]density = \frac{mass}{volume} \\[/tex]

From the question

mass = 15 g

volume = 5 mL

We have

[tex]density = \frac{15}{5} \\ [/tex]

We have the final answer as

Hope this helps you

Answer:

The given sample is aluminum.

Explanation:

Given data:

Mass of unknown sample = 54 g

Volume of given sample = 20cm³

Is sample is Al = ?

Solution:

In order to solve this problem we must know the density of Al from literature.

density of Al = 2.7 g/cm³

Now we will calculate the density of given unknown sample.

d = m/v

d = 54 g/  20cm³

d = 2.7 g/cm³

Thus given sample is aluminum.

Answer:

what do you need help with?

Explanation:

Answer:

Explanation:

A garlic allergy is rare. If you're allergic to garlic, you can be allergic to cooked or raw garlic, or to all forms. A garlic allergy is caused when your body's immune system mistakenly identifies garlic as being harmful and produces antibodies in an attempt to fight it off. Does this help?

Answer

Dependent

Explanation:

You will react depending on the presence of garlic powder

Answer:

I think acetone has more because water is just H20

Answer:

Acetone

Explanation:

Acetone has three carbon atoms, six hydrogen atoms, and one oxygen atom.

When water has an oxygen atom and two hydrogen atoms.

Answer:

Option A. Na⁺

Explanation:

Floride ion (F¯) simply indicates that the fluorine atom has gain an extra electron.

Thus, the electronic configuration of the fluoride ion (F¯) can be written as follow:

F¯ (10) => 1s² 2s²2p⁶

Next, we shall determine the electronic configuration of the element given in options to see which is the same as that of the fluoride ion (F¯). This is illustrated below:

Na⁺ (10) => 1s² 2s²2p⁶

Na (11) => 1s² 2s²2p⁶ 3s¹

Cl (17) => 1s² 2s²2p⁶ 3s²3p⁵

Cl¯ (18) => 1s² 2s²2p⁶ 3s²3p⁶

From the above illustrations, we can see that the fluoride ion (F¯) has the same electronic configuration as Na⁺.

Each element is made up of electrons and these electrons are filled in different shells. These are the following shells in the electrons:

According to the question, the fluoride ion has 10 electrons in its 2 shells, that is 2 in K shell and 8 in L shell.

A similar number of shell and electrons to the fluoride ion is sodium ion ([tex]Na^{+}[/tex])

The [tex]Na^+[/tex]has a total 10 number of electrons, hence the electronic configuration is 2 and 8.

Therefore, the [tex]Na^+[/tex] is the correct option.

For more information, refer to the link:-

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Answer:

It's B.

Explanation:

Answer:

Explanation:

Thank you ☺️☺️

Answer:

Explanation:

The atomic number (number at the top) is the amount of protons and the amount of electrons. So if an element has an atomic number of 5, you know that it has 5 protons and 5 electrons. The atomic mass (number at the bottom) is the amount of protons and neutrons added together.

Answer:

C on edge

Explanation:

im the best rust player so ofc i know

The smallest packet of electromagnetic energy that can be absorbed or emitted is photon.

Radiation that travels in waves and has both electric and magnetic fields. It is derived from both natural and artificial sources. The power of electromagnetic energy can range from low to high.

Hence photon is the smallest packet of electromagnetic energy.

To know more about photons, visit the below link:

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Answer:

Monosaccharides are the most basic units of carbohydrates. These are simple sugars, including glucose, fructose, and others. They contain between three and seven carbon atoms, have a sweet taste and are used by the body for energy.

Answer:

Black holes are so dense that light cannot escape from them, and they are difficult to detect. Satellites above the Earth's atmosphere can detect bursts of high energy radiation given off by black holes. Dozens of stellar black holes have already been detected in the Milky Way, where there may be tens of millions more.

Explanation:

Answer:

B)

Explanation:

Answer:

torque =force*distance

The metric system is used to measure the objects based on various parameters. A centimeter is a unit of length. One inch is equivalent to 2.54 cms.

The Metric system is the system used to estimate the weight (mass), length, and capacity of the object and was first introduced in France by  Gabriel Mouton, a mathematician, and an astronomer. The metric system measures length, mass, volume, time, etc.

The metric system of length use the SI unit of meter, other units used to measure the length are centimeter, kilometer, millimeter, inches, yard, mile, feet, etc.

Given,

Length = 1 inch

It is known that an inch is equivalent to 2.54 centimeters, hence, 1 cm = 2.54 cms.

Therefore, there are 2.54 centimeters in one inch of the object.

Learn more about metric conversion here:

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Answer:

chemical

Explanation:

i did that stuff in 5th grade  

Answer:

5-20 mins

Explanation:

Answer:

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

From the question

volume = 8.5 mL

density = 80 g/mL

We have

mass = 80 × 8.5

We have the final answer as

Hope this helps you