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3 years ago

Emily spills concentrated sodium hydroxide solution on her lab bench. What she should do first?

Chemistry

2 answers:

Alex_Xolod [135]3 years ago

8 0

Emily must notify the Instructor of the Lab/Classroom.

kicyunya [14]3 years ago

3 0

Answer:

Explanation: hell noo

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42,000 mL is equal to L

Goshia [24]

$1000ml = 1l$

$42000ml = 42l$

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3 years ago

4. Did the complete process of photosynthesis take place in the way you modeled it in this activity? Explain your answer

weqwewe [10]

Hello!

This question requires a model -- you'll have to do that yourself. However, I can explain the steps for the process:

• Chlorophyll absorbs the sun's energy.

• The energy is used to split water molecules into hydrogen and oxygen.

• The oxygen is released from the leaves into the atmosphere.

• The hydrogen and carbon dioxide glucose (food) for plants.

If you have any more questions related to this assignment, please let me know!

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4 years ago

How would you describe the solid-state in terms of motion (ability to move in the space and speed) and distance between molecule

horrorfan [7]

In the gaseous state, the molecules are completely free because there is no intermolecular interaction between the molecules hence they translate at incredibly high velocity.

According to the kinetic theory of matter, the molecules that compose matter are in constant random motion. The nature of this motion varies in the three states of matter which are;

Solid
Liquid and
Gas

In the solid state, the molecules do not translate, they only vibrate and rotate about their mean positions. In the liquids state, the molecules translate but they still have restricted degrees of freedom due to intermolecular interactions. In the gaseous state, the molecules are completely free because there is no intermolecular interaction between the molecules hence they translate at incredibly high velocity.

Learn more: brainly.com/question/6111443

8 0

3 years ago

Calculate the average atomic mass element X

Leto [7]

Answer:

39.02 amu

Explanation:

The average atomic mass of an element can be calculated as follows :

$X=\dfrac{9.67\times 38+78.68\times 39+11.34\times 40+0.31\times 41}{100}\\\\X=\dfrac{3902.29}{100}\\\\X=39.02\ amu$

So, the atomic mass of the element X is 39.02 amu.

5 0

3 years ago

Please show all work:

Tom [10]

If 40.0 grams of magnesium is reacted with an excess of nitric acid. 3.3 g of hydrogen gas will be produced.

<h3>What is Stoichiometry ?</h3>

Stoichiometry helps us use the balanced chemical equation to measure quantitative relationships and it is to calculate the amounts of products and reactants that are given in a reaction.

<h3>What is Balanced Chemical Equation ?</h3>

The balanced chemical equation is the equation in which the number of atoms on the reactant side is equal to the number of atoms on the product side in an equation.

Now we have to write the balanced equation

Mg + 2HNO₃ → Mg(NO₃)₂ + H₂

According to Stoichiometry

$40.9\ \text{g Mg} \times \frac{1\ \text{mol Mg}}{24.31\ \text{g Mg}} \times \frac{1\ \text{mol}\ H_2}{1\ \text{mol Mg}} \times \frac{2.02\ g\ H_2}{1\ \text{mol}\ H_2}$

= 3.3 g H₂

Thus from the above conclusion we can say that If 40.0 grams of magnesium is reacted with an excess of nitric acid. 3.3 g of hydrogen gas will be produced.

Learn more about the Stoichiometry here: brainly.com/question/16060223

#SPJ1

8 0

2 years ago