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alukav5142 [94]
4 years ago
12

Solve the following: Which one is more metallic

Chemistry
1 answer:
Degger [83]4 years ago
7 0

Answer:

aluminum

Explanation:

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(I NEED THIS ANSWERED QUICKLY! I WILL GIVE BRAINLIEST IF YOU'RE ANSWER IS CORRECT! AND MAYBE EXTRA POINTS!)
MrRissso [65]

Answer:

C: object does not slide off the pan

Explanation:

6 0
3 years ago
Read 2 more answers
Calculate the molarity of a 150 g NaCl in 250 ml solution.
Marizza181 [45]

Answer: 10.3 mol/l

Explanation: Molality = concentration c = n/V

Amount of substance n = m/M = 150 g / 58.44 g/mol  =

2,5667 mol . c = 2.5667 mol / 0.25 l = 10.2669 mol/l

c =

7 0
3 years ago
If 4.168 kJ of heat is added to a calorimeter containing 75.40 g of water, the temperature of the water and the calorimeter incr
Savatey [412]

Answer:

The value of  the heat capacity of the Calorimeter  C_c = 54.4 \frac{J}{c}

Explanation:

Given data

Heat added Q = 4.168 KJ = 4168 J

Mass of water m_w = 75.40 gm

Temperature change = ΔT = 35.82 - 24.58 = 11.24 ° c

From the given condition

Q = m_w C_w ΔT + C_c ΔT

Put all the values in above equation we get

4168 = 75.70 × 4.18 × 11.24 +  C_c × 11.24

611.37 =  C_c × 11.24

C_c = 54.4 \frac{J}{c}

This is the value of  the heat capacity of the Calorimeter.

5 0
3 years ago
The pressure of a 5.0 L sample of gas changes from 3.0 atm to 10.0 atm while the temperature remains constant. What is the gas’s
lina2011 [118]

Answer:

<h2>The answer is 1.5 L</h2>

Explanation:

The new volume can be found by using the formula for Boyle's law which is

P_1V_1 = P_2V_2

Since we are finding the new volume

V_2 =  \frac{P_1V_1}{P_2}  \\

From the question we have

V_2 =  \frac{5 \times 3}{10}  =  \frac{15}{10}  =  \frac{3}{5}  \\

We have the final answer as

<h3>1.5 L</h3>

Hope this helps you

8 0
3 years ago
Define exothermic reaction.<br> Define endothermic reaction.
balandron [24]
Exothermic reaction = the term exothermic process describes a process or reaction that releases energy from the system to its surroundings, usually in the form of heat, but also in a form of light, electricity,

Endothermic reaction = An endothermic process is any process with an increase in the enthalpy H (or internal energy U) of the system. In such a process, a closed system usually absorbs thermal energy from its surroundings, which is heat transfer into the system.
4 0
3 years ago
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