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hjlf
3 years ago
12

The metric prefix deca- means???? a. 0.1 b. 10 c. 100 d. 1000

SAT
1 answer:
ExtremeBDS [4]3 years ago
4 0
I think it means B. 10
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Which reaction will most likely take place based on the activity series? li > k > ba > ca > na > mn > zn >
Ivenika [448]

The only reaction that will most likely take place based on the activity series is; C: Ba + Na₂CO₃

<h3>Activity Series</h3>

From the activity series given, we can say that during a displacement reaction, the more reactive metal will always displace the lesser reactive metal from a compound.

Let us look at each of the given options;

A) Ag + FeCl₃

From the activity series, Silver(Ag) is less reactive than Iron(Fe) and as such Silver cannot displace iron from its' compound.

B) Zn + CaO

Zinc (Zn) is a less reactive metal than Calcium (Ca), so it cannot cannot displace Calcium from its' compound.

C) Ba + Na₂CO₃

Barium (Ba) is a more reactive metal than Sodium (Na), and therefore Barium will displace sodium from its compound in a displacement reaction.

D) Cr + KNO₃

Chromium (Cr) is a lesser reactive metal than Potassium (K), and it therefore cannot displace Potassium from its compound.

Complete question is;

Which reaction will most likely take place based on the activity series? Li > K Ba > CaNa > Mn > Zn > Cr> Fe> Cd Ni > H > Sb > Cu > Ag > Pd > Hg > Pt

A. Ag + FeCl₃

B. Zn + CaO

C. Ba + Na₂CO₃

D. Cr + KNO₃

Read more about Activity Series at; brainly.com/question/17469010

5 0
2 years ago
Quality of life can include mental, as well as physical, activity level.
miss Akunina [59]
True. Mental health should be factored into any quality of life
7 0
3 years ago
Read 2 more answers
The number of employees in a company decreased from 40 to 28. What is the percentage decrease in the number of employees?.
Verdich [7]

Answer:

Answer: <u> </u><u>3</u><u>0</u><u>%</u><u> </u><u> </u><u>decrease</u><u> </u>

Explanation:

= { \rm{ \frac{(40 - 28)}{40}  \times 100\%}} \\  \\  = { \rm{30\%}}

8 0
2 years ago
How many even intergers greater than two and less then twenty are equal in value to the sum of two prime numbers?
lilavasa [31]
The answer would be 6 even numbers greater than 2 and less than 20 would be equal to the sum of two prime numbers.

explanation:

even numbers greater than 2 and less than 20 would be 4, 6, 8, 10, 12, 14, 16, and 18.
the prime numbers we can use would be 2, 3, 5, 7, 11, and 13.

13+3=16 and 13+5=18.
11+3=14.
7+3=10 and 7+5=12.
finally, 5+3=8.

that makes a total of 6 even numbers.
5 0
3 years ago
His worrying nature and his ______________ were the results of a constant fear of death.
umka21 [38]
I think the answer is D
7 0
3 years ago
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