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Neko [114]
3 years ago
10

Through which of the following ways can heat be transferred?

Chemistry
1 answer:
natka813 [3]3 years ago
3 0

Answer: Heat can be transferred in a variety of ways including direct contact so the answer is b

Explanation:title

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How many moles are in 213 grams of NaCl?
Nata [24]

Answer:

There are 3, 64 moles of NaCl.

Explanation:

First we calculate the mass of 1 mol of NaCl, starting from the atomic weights of Na and Cl obtained from the periodic table. Then we calculate themoles in 213 grams of NaCl, making a simple rule of three:

Weight NaCl= Weight Na + Weight Cl = 23 g + 35, 5 g= 58, 5 g/ mol

58,5 g ------1 mol NaCl

213 g---------x= (213 g x 1 mol NaCl)/ 58, 5 g= <em>3, 64 mol NaCl</em>

5 0
3 years ago
What is the independent variable, and the dependent variable in this?
Doss [256]

Answer:

The salt and sugar as well as the baby power and granulated sugar are the independent variables.

The dependent variable is how it reacts (will it dissolve or not)

Explanation:

5 0
3 years ago
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Consider the following reaction at equilibrium: 2NH3 (g) N2 (g) + 3H2 (g) Le Châtelier's principle predicts that the moles of H2
Lilit [14]

Answer:

A decrease in the total volume of the reaction vessel (T constant)

Explanation:

  • Le Châtelier's principle predicts that the moles of H2 in the reaction container will increase with a decrease in the total volume of the reaction vessel.
  • <em><u>According to the Le Chatelier's principle, when a chnage is a applied to a system at equilibrium, then the equilibrium will shift in a way that counteracts the effect causing it.</u></em>
  • In this case, a decrease in volume means there is an increase in pressure, therefore the equilibrium will shift towards the side with the fewer number of moles of gas.
3 0
3 years ago
2. What are the factors that influence the two types of energy?
VikaD [51]

Answer:

It depends on the objects mass, the gravitational pull when up or down slopes, and the height of the reference point

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2 years ago
Is this statement true or false? Bases feel slippery. A. True B. False
Ksenya-84 [330]
Actually, it is true

7 0
3 years ago
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