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Mrac [35]
3 years ago
12

BALANCING EQUATIONS HELP WILL MARK BRAINLIEST

Chemistry
1 answer:
Fed [463]3 years ago
4 0

Answer:

  1. C_{3}H_{8}+5O_{2}->3C O_{2}+4H_{2}OCombustion reaction
  2. Ca +Mg(NO3)2-> Ca(NO3)2+Mg Displacement reactio
  3. KOH +HBr ->KBr+H2O acid base reaction
  4. 4Na+O2 ->2Na2Ocombustion at low temperature
  5. 2MgO ->Mg+O2 Decomposition reaction
  6. 2K +Cl2-> 2KCl Chlorination reaction

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HELP ASAP<br> Pleaseeee!!!!
kow [346]

Answer:

1 Second

Explanation:

10 meters per second for 10 meters, you just divide.

8 0
3 years ago
Read 2 more answers
What mass of carbon monooxide must be burned to produce 175 kJ of heat under standard state condaitions?
Sphinxa [80]

Answer:

17.3124 grams

Explanation:

Given;

Amount of heat to be produced = 175 kJ

Molar mass of the carbon monoxide = 12 + 16 = 28 grams

Now,

The standard molar enthalpy of carbon monoxide = 283 kJ/mol

Thus,

To produce 175 kJ heat, number of moles of CO required will be

= Amount heat to be produced /  standard molar enthalpy of CO

or

= 175 / 283

= 0.6183

Also,

number of moles = Mass / Molar mass

therefore,

0.6183 = Mass / 28

or

Mass of the CO required = 0.6183 × 28 = 17.3124 grams

7 0
4 years ago
If the larger, metallic object is initially at rest, which of the following tables could summarize its motion over the same time
omeli [17]

Answer:

Explanation:

Its letstute.

Hopes it help you thanks

4 0
4 years ago
Read 2 more answers
Atoms are so small that approximately _______ of them can fit at the end of a needle?
rewona [7]

Answer:

5 million million atoms can fit at the end of a needle

4 0
3 years ago
Read 2 more answers
This is usually pretty easy but I'm having a tough time
Kamila [148]

Answer:

Define the Problem

Background Research

Write a Hypothesis

Carry Out the Experiment

Analyze Data

Draw a Conclusion

Explanation:

First of all, identify the first and last steps before figuring out the middle.

In order, the first and last steps should be

Define the Problem

...

Draw a Conclusion.

Next, you can add your answers in the middle, from beginning to end. That would be,

Define the Problem

Background Research

Write a Hypothesis

Carry Out the Experiment

Analyze Data

Draw a Conclusion

Let me know if this is inaccurate as I am learning everyday. Hope this helped!

3 0
3 years ago
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