PLEASE HELP WILL GIVE BRAINLEST URGENT!!!!!!


When vinegar, an acid, is mixed with baking soda, a base, the reaction is similar to the reaction of Alka-Seltzer and water; a salt, water and carbon dioxide are produced. In two or more complete sentences, describe how your knowledge of balancing chemical equations can help you to determine the missing compound.


NaHCO3 + HC2H3O2 ⟶ ________ + H2O + CO2

Answer:

1) Carbon dioxide is the name of the gas.

2) The missing compound is  

Step-by-step explanation:

1)When ever an acid reacts with baking soda brisk effervescence of carbon dioxide gas are released.

So, when citric acid reacts with baking soda it gives salt of sodium citrate , water and carbon dioxide gas.

2)

According to law of conservation of mass:

Number of atoms on reactant sides are equal to the number of atoms on product side.

Number of atoms of an element on left hand side is equal to the number of atoms of that same element on the right hand side.

Number of hydrogen atom on reactant side = 5

Number of hydrogen atom on product side = 2+ x

5 = 2+x

x = 3

Number of carbon atom on reactant side = 3

Number of carbon atom on product side = 1 + y

3 = 1 + y

y = 2

Number of oxygen atom on reactant side = 5

Number of oxygen atom on product side = z + 3

5 = z + 3

x = 2

Number of sodium atom on reactant side = 1

Number of oxygen atom on product side = a

1 = a

The missing compound is  

Explanation:

Answer:

1) Carbon dioxide is the name of the gas.

2) The missing compound is H3C2O2Na

If you need an explanation, please ask. I hope this helps! :)

which of the following can cause an algal bloom ?

Connect as many terms that you can think of. Each term should be related to
the term at the center,
LIGHT​

4 QUESTIONS PLEASEEE HELP WILL GIVE BRAINLIEST!!!!
1. How are features like trenches, plains, ridges and valleys formed on the ocean floor?
2. Where does 90% of the marine life live in oceans?
3. a. Where are nutrients abundance? b. Where do these nutrients come from?
4. How do organisms deep I the ocean get their nutrients?

please help me!!!! or my mom will ground me for 2 weeks :(

Identify the force used on your arm when you walk a dog on a leash and it tries to chase something.

Friction
Gravity
Strong pull
Weak push

What element has the most Protons/ Neutrons/ and electrons.

Label the picture, please

Help! Please :) Thank you

PLS HELP ASAP

How does the mass of an object affect its force?

Water is less dense as ice than liquid

Your answer:

true


false

How are the scientific method and the engineering method similar?

Both methods identify failure points.
Both methods construct a hypothesis.
Both methods focus on designing things.
Both methods work on finding solutions to problems.

Compare and contrast the alkaline battery and a Zinc carbon battery. put in some other facts about them too. write somewhere around 2 paragraphs.



I'll mark brainlyest to whoever has the best answer and give them 50 points for helping me.

Which of the materials in the chart originally came from fossil fuels?

Group of answer choices

Acrylic

Cotton

Nylon

Polyester

Viscose

What are some advantages and disadvantages of sexual reproduction?

how are elements in the same group in the periodic table alike

Which statement best describes a difference between scientists and engineers?

Scientists build prototypes, while engineers test failure points.
Scientist design machines, while engineers conduct experiments.
Scientists and engineers are the same. They both study how things work.
Scientists study how things work, while engineers create new things.

WILL GIVE BRAINLY! Use the Venn diagram to compare natural and synthetic resources.

Can someone please explain the cause and effect between the rearrangement of atoms and molecules in a chemical reaction and the different properties that the products have from the reactants.

True or False; Vacuoles are bigger in plant cells because they store more water

At room temperature, aluminum is a solid and water is a liquid. How do the particles of the solid aluminum compare to the particles of the liquid water?
A. The particles in the liquid water and the solid aluminum are the same. They both vibrate and move slowly.
B. The particles in the solid aluminum vibrate and are tightly packed, and the particles in liquid water slide past each other.
C. The particles in the liquid water vibrate and are tightly packed and particles in the solid aluminum slide past each other.
D.The particles in the solid aluminum are close together with no regular arrangement, and the particles in the liquid water are well separated with a regular arrangement.

Which illustrates different states of a substance?


1. oxygen and nitrogen

2. sugar and water

3. ice and water vapor

4. limestone and crushed limestone

Will give brainliest for correct answer - with an explanation on why its correct -
not trying to be rude just want the correct answer, not guesses :)

True or False: As air masses move, they rarely change temperatures and/or moisture levels.

It is important that engineers build a structure that is safe. What do they look for when testing their designs?

Failure points
Fair tests
Prototypes
Variables

Which of the following is NOT a characteristic that all living things share? *
using energy
made of cells
able to talk
reproduce
Other:

Which organism in the food chain has created food from the energy in sunlight?

A
krill

B
phytoplankton

C
leopard seal

D
Antarctic herring

Explain the Flow of Energy in Photosynthesis: Where does the Energy come from initially? What is it called? What type of energy does it become? Finally what type of Energy is it broken down into? How does this all happen? Explain with details! I really appreciate your help

One atom of (blank) bonded to two atoms of (blank).

Water has 2 oxygen molecules and 1 hydrogen molecule

Your answer:

True


False

please help asapppp

if you cant read the question is says : "sort the factors that affect and impact growth of plants. Drag and drop each word into the correct category in the chart below. Some words may go in more than one category"

pls donttt answer if you dont know.

EASYYYYYYYYYYY A batter hits two balls during practice. Ball A travels 10 meters, while ball B travels 12 meters. The batter decides to hit ball A with less force. How will this change the motion of ball B?

The motion of ball B will increase.
The motion of ball B will decrease.
The motion of ball B will stay the same.
The motion of ball B will become the same as ball A.