All categories

2 years ago

Based on the chemical equation, use the drop-down menu to choose the coefficients that will balance the chemical

Physics

1 answer:

MaRussiya [10]2 years ago

8 0

The coefficients in order are 2, 1, 1

<h3>What is balanced chemical equation?</h3>

A balanced equation is an equation for a chemical reaction in which the number of atoms for each element in the reaction and the total charge is the same for both the reactants and the products.

In other words, the mass and the charge are balanced on both sides of the reaction.

According to the given situation,

To balance the the chemical equation,

Step 1 - Add a 2 on the Na2HPO4:

2(Na₂HPO₄) ⇒ Na4P₂O₇ + H₂O

Step 2 -Next take count of each element on both sides to see if the 2 is balanced or not:

On the left there are 4 Na, 2 H, 2 P, and 8 O

On the right there are 4 Na, 2 H, 2 P, and 8 O

Step 3 - Now we will divide by 2

i.e. 2 NA.H. P

The coefficient of Na is 2 , Coefficient of H is 1 and Coefficient of P is 1

Therefore,

The coefficients in order are 2, 1, 1.

Learn more about balanced chemical equation here:

brainly.com/question/15052184

#SPJ1

You might be interested in

Plants make energy. Some of it they use to preform the necessary functions of living. What do they do with the excess energy?

Maksim231197 [3]

Answer:

They can use it for when they are dormant in the winter or to grow more sources for storing and creating energy, or they store the energy (this energy would be considered stored energy).

4 0

3 years ago

When is there the least amount of heat transfer within a liquid

Annette [7]

In the beginning, the melting stage they call it.

6 0

3 years ago

Read 2 more answers

2) What must be connected for an electrical current to flow in a simple current?

hjlf

2) What must be connected for an electrical current to flow in a simple current?

d.moving magnets,conductors, load to do work

here moving magnets will work as generator and conductors is used as connectors.

5)What is the purpose of a load in a circuit?

c.provide resistance to keep the voltage strong

Load will provide the resistance to the circuit and help to build the voltage across it

6) What cause an electric current from a generator

d.Magnets and conducting wires move near each other

here when magnets move near wires then it will induce the electric current and behaves like generators

7) What do all generators have in common

b.they transform mechanical into electrical energy

They have magnets and rotating coils which will convert magnetic energy to electrical energy

8) How can we measure electrical current

b.the pressure force is voltage;the # of electrons moving is amperes

this voltage and number of electrons will help to calculate current

6 0

3 years ago

HELP A.S.A.P SCIENCE

Nimfa-mama [501]

I think its d, it is pointing to the whole circle which prob rlly makes it a proton

8 0

3 years ago

Read 2 more answers

Richard is driving home to visit his parents. 150 mi of the trip are on the interstate highway where the speed limit is 65 mph .

Serggg [28]

Answer:

t = 25.5 min

Explanation:

To know how many minutes does Richard save, you first calculate the time that Richard takes with both velocities v1 = 65mph and v2 = 80mph.

$t_1=\frac{x}{v_1}=\frac{150mi}{65mph}=2.30h\\\\t_2=\frac{x}{v_2}=\frac{150mi}{80mph}=1.875h$

Next, you calculate the difference between both times t1 and t2:

$\Delta t=t_1-t_2=2.30h-1.875h=0.425h$

This is the time that Richard saves when he drives with a speed of 80mph. Finally, you convert the result to minutes:

$0.425h*\frac{60min}{1h}=25.5min=25\ min\ \ 30 s$

hence, Richard saves 25.5 min (25 min and 30 s) when he drives with a speed of 80mph

3 0

3 years ago