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Sloan [31]
2 years ago
14

Can someone help pls

Chemistry
1 answer:
zysi [14]2 years ago
3 0
What is the problem u need help with
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True or false, when a material loses thermal energy, it usually contracts.
Brums [2.3K]

Answer:

True

Explanation:

Whenever something loses thermal energy, it contracts and becomes smaller.

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2 years ago
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Predict the formula for a compound made from X^2+ and Y^3-
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Compound is X3Y2.

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3 years ago
When the following redox equation is balanced with smallest whole number coefficients, the coefficient for nitrogen dioxide will
Phoenix [80]

In a redox reaction, electron could be lost or gained. The coefficients in the balanced redox reaction are;  1/2, 5, 1, 5, 2, 1.

<h3>What is a redox reaction equation?</h3>

A redox reaction equation shows the species that were oxidized or reduced in a redox reaction. In this case, we are asked for the coefficients in a balanced redox reaction equation.

We must recall that five electrons were lost/gained in the process hence the balanced reaction equation is;

1/2I2 + 5HNO3 -----> IO3^- + 5NO2 + 2H2O + H^+

The coefficients in the balanced equation therefore are; 1/2, 5, 1, 5, 2, 1.

Learn more about redox reaction: brainly.com/question/13293425

7 0
2 years ago
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What makes an acid a strong acid in water makes a base or weak base
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It’s ph level on the ph scale. 1-3 is a strong acid, 4-6 is a weak acid, 7 is neutral, 8-10 is a weak base, and 10-14 is a strong base.
8 0
2 years ago
All moving parts produce friction. true or false
PilotLPTM [1.2K]
Hey there! :D

To some extent, all moving parts produce friction. It can be very small or minimal, but all parts produce some form of friction. 

This is true. 

I hope this helps!
~kaikers
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3 years ago
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