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NISA [10]
3 years ago
11

6) Which of these elements is a metal? E) C D) N A) O C) Ne B) Ca

Chemistry
2 answers:
Jobisdone [24]3 years ago
6 0

Answer:

Ca

Explanation:

sertanlavr [38]3 years ago
4 0

Answer:

Ca

Explanation:

It is on the left side of the periodic table where metals are located.

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3. Write a hypothesis that explains your inference about the acidity of the paper. How might you test your hypothesis by extendi
vredina [299]

Answer:

google

Explanation:

go to the plus thing on your screen and search it. (please dont attack me im doing a dare  >:( )

8 0
3 years ago
What determines the traits of offspring?A.Food sources that have been genetically engineered B.Literary metaphors and exciting c
iren2701 [21]

Answer:

D. Genes received from the offsprings parents.

Explanation:

8 0
3 years ago
7. Calculate the amount of energy required heat 100.g to <br> H2O(s) changes to H2O(l) at 0°C
Brrunno [24]

Answer:

33300J

Explanation:

Given parameters:

Mass of ice  = 100g

Unknown:

Amount of energy = ?

Solution:

This is a phase change process from solid to liquid. In this case, the latent heat of melting of ice is 3.33 x 10⁵ J/kg.

 So;

            H  = mL

m is the mass

L is the latent heat of melting ice

  Now, insert the parameters and solve;

            H = mL

 mass from gram to kilogram;

            100g gives 0.1kg

  H = 0.1 x 3.33 x 10⁵ = 33300J

8 0
3 years ago
What should each experiment only have one of?
Ket [755]

Answer: varriable

Explanation:meaning one element, feature or factor able to change

3 0
3 years ago
A calorimeter measures the Choose... involved in reactions or other processes by measuring the Choose... of the materials Choose
yuradex [85]

Answer:

heat; temperature; surrounding; insulated.

Explanation:

A calorimeter can be defined as a scientific instrument (device) that is designed and developed for measurement of the heat involved in chemical reactions or other processes, especially by taking the measurement of the temperature of the materials surrounding the process.

Basically, a calorimeter is insulated using materials with a very high level of resistivity, so as to prevent heat transfer to the outside of the device (calorimeter).

Some of the components that make up a simple calorimeter are; thermometer, an interior styrofoam cup, an exterior styrofoam cup, cover, etc.

Additionally, a calorie refers to the amount of heat required to raise the temperature of a gram of water by one degree Celsius (°C)

3 0
3 years ago
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