Simple chemistry question please help. Look at image.

Answer:

I belive the answer is D

Answer:

Individual organisms live together in an ecosystem and depend on one another. In fact, they have many different types of interactions with each other, and many of these interactions are critical for their survival. ... One category of interactions describes the different ways organisms obtain their food and energy.

Answer:

wind can carry sand and dirt in the air. if the sand or dirt hit a material repeatedly, the material can break down after being hit multiple times. with this, materials can erode.

Explanation:

Answer:

Covalent

Explanation:

Ionic gives or takes electrons

Metallic isn't really a "type" of bond

The speed : 2222.2 cm/s

Velocity has magnitude and direction  

Can be formulated :

v= velocity, m/s

d=distance=m

t=time,s

convert from km/h to cm/s :

Answer:

1st one: crack

2nd: carefully

Explanation:

Answer:

Crack and then carefully

Explanation:

I just did it in edgen 2020

Answer:

melting and boiling points

Explanation:

The technique for determination of melting and boiling points will also be described in this unit. Pure solid and liquid compounds possess sharp melting and boiling points. Therefore, melting and boiling points of a compound

A

Explanation:

B is wrong because it talks about speed, C is wrong because it talks about direction, and D is wrong because it talks about the amount of tilt. A is correct because it's the only one that talks about the time of the orbit and the time of orbit determines the length of a year. :)

Answer:

Chemical

Explanation:

Answer:

For many solids dissolved in liquid water, the solubility increases with temperature. The increase in kinetic energy that comes with higher temperatures allows the solvent molecules to more effectively break apart the solute molecules that are held together by intermolecular attractions.

Explanation:

Make sure to edit so you do get copy-writed

Answer:

Color and Melting Point

Answer:

Explanation:

Color melting point

ZnS(s) + 2O₂(g) ⇒ZnSO₄(s)

The oxidation-reduction reaction or abbreviated as Redox is a chemical reaction in which there is a change in oxidation number

Oxidation is an increase in oxidation number, while reduction is a decrease in oxidation number.

Reaction

ZnS(s) + 2O₂(g) ⇒ZnSO₄(s)

S²⁻ (-2 in ZnS) to S⁺⁶(+6 in ZnSO₄) ⇒ oxidation

O₂(0 in O₂) to O⁻²(-2 in ZnSO₄)⇒ reduction

Answer:

A. ZnS(s) + 2O2(g) Right arrow. ZnSO4(s)

Explanation:

Carbon-12

Carbon-12 is the reference for all atomic mass calculations. An atomic mass unit is defined as a mass equal to one twelfth the mass of an atom of carbon-12.

Answer:

4Al + 3O2 --> Al2O3

Step 1; fi

Answer:

Fal down to the flour

Explanation:

Because of gravity their is weight that weight keeps us down to earth everything has weight even a leaf not only weight but the atmosphere is like a wall that keeps us safe from all the stuff in space.

Answer: H2O2

Explanation:

Answer:

Chlorine

Explanation:

Since chlorine is above bromine in the periodic table, following the trends of ionization energy in the periodic, the further up you go the more energy is required to ionize an atom.  

Answer:

is behavior

Explanation:

becuase behavior can be affected on the eviroment we are in

Our behavior is affected by physical environment.

Individuals live, study, work, even play in their external surroundings. People's physical environments are influenced by the air those who breathe, the water they consume, the homes they reside in, and the vehicles they need to get to school and work.

The way someone acts was referred to as their behavior. That's what a person must do to make things happen, modify something, and maintain the status quo.

Our behavior is affected by physical environment.

Therefore, the correct answer will be option (c)

To know more about physical environment.

https://brainly.com/question/13319728

#SPJ2

Answer:

For #3 I believe it's A

Explanation:

It can't be changed INTO a solid because it already is one.

Hope this helps!

Answer:

Rb>Na>P>S>Cl

Explanation:

In a group from up to down the atomic radius increases

In a row from left to right the atomic radius decreases.

Answer:

Dark Blue: Symbolizes integrity, knowledge, power, and seriousness. Blue: Peace, tranquility, cold, calm, stability, harmony, unity, trust, truth, confidence, conservatism, security, cleanliness, order, loyalty, sky, water, technology, depression, appetite suppressant.

Answer:

Explanation:

The new volume can be found by using the formula for Boyle's law which is

[tex]P_1V_1 = P_2V_2[/tex]

Since we are finding the new volume

[tex]V_2 = \frac{P_1V_1}{P_2} \\[/tex]

From the question we have

[tex]V_2 = \frac{4.31 \times 0.755}{1.25} = \frac{3.25405}{1.25} \\ = 2.60324[/tex]

We have the final answer as

Hope this helps you

Answer: Prob to see if anything new has came or has happened

Explanation:

Answer:

NASA Publishes Artemis Plan to Land First Woman, Next Man on Moon in 2024. ... We're going back to the Moon for scientific discovery, economic benefits, and inspiration for a new a generation of explorers. As we build up a sustainable presence, we're also building momentum toward those first human steps on the Red Planet.

Explanation:

Answer:

Because nitric acid is acidic in nature and sodium hydroxide is basic in nature so when acid and base react they become neutral.

Explanation:

1)

Equation -

Propane + oxygen → carbon dioxide + water

C₃H₈ + 5O₂ → 3CO₂ + 4H₂O

Here,

Products are -

2)

Equation -

AgNO₃ (aq.) + NaCl (s) → AgCl ↓ + NaNO₃ (aq.)

Answer:Classify each of the following chemical reactions.

S + O2 → SO2

CaCl2 + 2AgNO3 → Ca(NO3)2 + 2AgCl

Zn + CuSO4 → Cu + ZnSO4

2Na2O → 4Na + O

Explanation:

synthesis and combustion

double replacement

single replacement

decomposition only