Chemistry Middle School

2NH4Cl(aq) + CaO(s) —> __H2O (l) + CaCl2 (aq)

which expression completes the balanced equation?

Answers

Answer 1
CaCI2 (aq) seems to be correct.

Related Questions

How do organisms that can’t make their own glucose through photosynthesis, get glucose?

Answers

Answer:

All explained on the site! Just cope and paste!

Explanation:

https://ssec.si.edu/stemvisions-blog/what-photosynthesis

Hope this helped!

A spring-fed stream forms a pond that contains watercress plants, minnows, and crayfish. The pond receives 5 hours of direct sunlight every day. Which of the following is an abiotic factor in this ecosystem?
the pond water

the watercress plants

the minnows

the crayfish

Answers

Answer:

the minnows

Explanation:

The minnows is an abiotic factor in the ecosystem Hence option 3 is correct.

What is ecosystem?

Ecosystem is defined as a structural and functional area of ecology where living things engage in interactions with one another and their surroundings. Ecosystem function refers to a system's capacity to directly or indirectly satisfy human wants for goods and services. Ecosystem functions are thought of as a subset of ecological processes and ecosystem structures.

The non-living elements of an ecosystem known as abiotic variables have an impact on their surroundings. Examples include temperature, light, and water in a terrestrial setting. Ocean currents and salinity are examples of abiotic components in a marine ecosystem.

Thus, the minnows is an abiotic factor in the ecosystem Hence option 3 is correct.

To learn more about ecosystem, refer to the link below:

https://brainly.com/question/1673533

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Okay science but it wasnt in the subjects
Can someone watch this and awnser this question
https://youtu.be/Bn41lXKyVWQ

What are the FOUR major biogeochemical cycles upon which all life depends?

Answers

I would but for some reason the link isn’t working when I pasted it it says error might be my wifi sorry !

________ are __________ for inherited traits.
PLSS ANSWER ASAP I BEG

Answers

Answer:

looks and cancer

Explanation:

you look like your parents and desises can be inhereted

Which of the following is the best example of potential energy?

Group of answer choices

A car stopped at the top of a hill

A swimmer doing the backstroke

A bird making a nest

A gymnast doing a cartwheel

Answers

Answer:

A car stopped at the top of a hill

Explanation:

Potential energy is the energy that is stored in an object due to its position relative to some zero position.

therefore, the answer is the first option

=> A car stopped at the top of a hill

hope this helps and is right :)

A car stopped at the top of the hill

identify the most widely accepted theory of solar system formation and summarize the process.

Answers

Answer:
Scientists have developed three different models to explain how planets in and out of the solar system may have formed. The first and most widely accepted model, core accretion, works well with the formation of the rocky terrestrial planets but has problems with giant planets.

HELP PLS PLEASSEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE

Answers

Okay.. so I guess this is how it goes:

1. Rainforest
2. Temperate deciduous
3. Marine
4. Taiga
5. Tundra

Pls don't completely rely on it, this is my best guess and it's probably right except with Marine life and temperature deciduous. 70% I feel like it would temperate then marine. But check with urself again. Hope this helped..

What geometric shape is the carbon dioxide molecule? The Lewis structure for CO2 contains two double bonds.

Answers

Answer: Linear

Explaination: The central atom of a carbon dioxide molecule is carbon. Carbon is tetravalent which just means it has 4 valence electrons. Because the valence shell isn’t full, the carbon atom can bond with other atoms creating a total of 4 bonds. This then allows the carbon to double bond with 2 oxygen atoms. Now, the atoms in the CO2 molecule Don’t share the electrons evenly because of atomic number or proton count. Because oxygen has an atomic number of 6, carbon has an atomic number of 4, and opposites attract (referring to the positivity of the nucleus and the negativity of the shared electrons), the oxygen atoms will have a slightly negative charge (-) and the oxygen will have a slightly positive charge (+ ). Therefore, the slightly negative oxygen atoms repel creating that linear shape.

Which situation shows kinetic energy being transformed into potential energy?

Group of answer choices

A ladder leaning against a house

A car moving at a steady speed

A sprinter moving from the starting line

A roller coaster car going uphill

Answers

Answer:

A roller coaster car going uphill

Explanation:

The roller coaster going up the hill has kenitic energy but when it comes to a small stop at the top of the hill it had been transormed into poteinal energy.

Rollercoaster going uphill is the answer

A girl stands on a bathroom scale. In metric units, the scale indicates that her weight is 42

Newtons. This means the force of gravity is pulling her feet onto the scale with a force of 42

Newtons. With what force does the scale push back up against her feet?

Answers

Answer:

The bathroom scale pushes her back 42 metric units, the same as her weight. Newton's 3rd law says that how much ever you push onto some object, it pushes back onto you with that same amount of pressure.

Please mark me brainliest so that I get encouraged to keep up on answering these types of good answers.

What happens to the reaction rate as the reactants get used up in a reaction?

O

A. The rate of the reaction is not affected by the concentration of

reactants.

B. The rate of the reaction increases steadily as products are formed.

O

O

O

C. The rate of the reaction begins to decrease as reactants are used

up

O

D. The rate of the reaction stays constant until the reactants are

gone.

Answers

The rate of the reaction depicts the speed at which the reaction occurs to produce the products. As the reactants get used up the reaction rate starts decreasing. Thus, option C is correct.

What are the factors affecting reaction rate?

The reaction rate of the chemical reaction gets affected by numerous factors that include temperature, the concentration of the reactants, catalyst, surface area, and physical state of the reactant.

The concentration of the reactant has a direct effect on the reaction rate as they are the deciding factor of the product formation. At the beginning of the reaction, the speed is fast compared to the end.

As the reactants start getting used up the reaction rate slows down as the molecules are not able to collide faster with other molecules to form the product.

Therefore, in option C. the reaction rate decreases with a decrease in concentration.

Learn more about reaction rate here:

https://brainly.com/question/12958959

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Kiley wants to balance the equation H2 + N2 → NH3. Which would be her first step in balancing an equation?

Answers

Answer: The balanced equation will be

6H2 + N2 → 2NH3

Explanation:

First step is to balance nitrogen

ie, H2 + N2 → 2NH3

Second step is to balance hydrogen accordingly

ie, 6H2 + N2 → 2NH3

This is the perfect balanced equation.

Answer:

c

Explanation:

c

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