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lbvjy [14]
3 years ago
15

A

Chemistry
1 answer:
Aleksandr [31]3 years ago
3 0

Answer:

D. Using a battery

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What does it mean to say an equation is balanced? Why is it important for an equation to be balanced?​
Rom4ik [11]

Answer: It is important for an equation to be balanced because if it is not then the reactants won't match the products.

Explanation: I don't know if you will understand this but here:

Let's say you're cooking eggs, you're reactants so to speak would be 3 eggs and 1 tablespoon of oil so you put it together using heat and a pan. Your products have to match what you have in the beginning. You cannot have an equation that looks like this

Reactants = 3eggs + 1Tbsp oil ---pan/heat---> 6eggs + 1 cup of oil

You cannot get something from what you don't have. The number of how much of an element you have must be the same of both sides of the equation.

8 0
10 months ago
Renaldo wants the students in his class to demonstrate the arrangement of the particles in a solid. What should he tell the stud
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3 years ago
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When taking a measurement of temperature which tool should be used
Tcecarenko [31]

Answer:

A thermometer is the appropiate tool to use.

Explanation:

4 0
3 years ago
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1. If a car is traveling 90 mi/hr, how many feet will the car travel in 1 sec? In 5 sec?
Fudgin [204]

Answer:

The car travel 660 feet

Explanation:

First convert the Speed into <u>Feet/sec</u>

Speed of the car = 90 mi/hr

1 mi = 5280 ft

In 90 miles = 90 x 5280 = 475,200  feet

1 hr = 60 min

1 min = 60 sec

So ,

1 hr = 60 x 60 sec = 3600 sec

The speed is defined as the distance traveled by the object in unit time. The formula of speed is :

Speed =\frac{distance}{time}

Speed =\frac{90mi}{1hr}... given

Speed =\frac{475200 ft}{3600sec}

Speed = 132 ft/sec

Now,  time = 5 sec

Speed =\frac{distance}{time}

distance =speed\times time

distance = 132ft/sec\times 5sec

Distance = 660 feet

3 0
3 years ago
Question 2.4 please. If 250ml of 1.5M Ba(OH)2 solution mixes with 250ml of 2.0M of HCl solution, calculate the increase in tempe
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Do you still need help?

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3 years ago
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