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jeka57 [31]
3 years ago
13

When naming a binary compound, what ending do you use to represent anions?

Chemistry
1 answer:
spin [16.1K]3 years ago
6 0
I believe You replace the ending of the elements name with -ide. example: magnesium flourine should should be magnesium flouride. 
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At a certain temperature the rate of this reaction is first order in HI with a rate constant of 0.0632 s
kirza4 [7]

Answer:

28.037\ \text{s}

Explanation:

[A]_0 = Initial concentration = 1.28 M

[A] = Final concentration = 0.17[A]_0

k = Rate constant = 0.0632 s

t = Time taken

For first order reaction we have the relation

kt=\ln\dfrac{[A]_0}{[A]}\\\Rightarrow t=\dfrac{\ln\dfrac{[A]_0}{[A]}}{k}\\\Rightarrow t=\dfrac{\ln\dfrac{[A]_0}{0.17[A]_0}}{0.0632}\\\Rightarrow t=28.037\ \text{s}

Time taken to reach the required concentration would be 28.037\ \text{s}.

8 0
3 years ago
Question 2<br> How many significant figures does the number have?<br> 23.0702
Pavlova-9 [17]
The number 23.0702 has 6 significant figures.

To answer this, you must have the rules for significant figures,

1. All non-zero numbers ARE significant
2. Zeros between two non-zero digits ARE significant
3. Leading zeros are NOT significant
4. Trailing zeros are ONLY significant if the number has a decimal point

The number 23.0702 has 4 non-zero numbers(rule 1), and both zeros are between two non-zero digits(rule 2). Since all 6 figures in the number 23.0702 are significant, the number 23.0702 has 6 significant figures.
7 0
4 years ago
A cyclist travels 60 km in 2 hours .What is his average speed?
zysi [14]

Explanation:

Mike drives his car 60 km in 55minutes. What is its average speed in kilometers per hour ? A train travels 120 km in 2 hours and 30 .

3 0
3 years ago
Explain how unstable atoms gain stability
IRINA_888 [86]
The atoms decay until the nucleus is balanced again 

4 0
4 years ago
Which atorn was used to determine the amount of particles in a mole?
stich3 [128]

Answer:

carbon atom is used to determine the amt of particles in a mole

5 0
3 years ago
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