1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alexus [3.1K]
3 years ago
10

I need help with this I’ve been trying a lot but I can’t understand these questions

Chemistry
1 answer:
kipiarov [429]3 years ago
4 0

Answer:

lose,equals,high

You might be interested in
The electron configurations of two unknown elements X and Y are shown . X: 1s^ 2 2s^ 2 2p^ 6 3s^ 1 Y: 1s^ 2 2s^ 1 Which statemen
PIT_PIT [208]

Answer:

See below.

Explanation:

They both have 1 valency electron so will be metallic and in the same Group (Group 1) of the Periodic Table, so will have similar properties.

8 0
3 years ago
Read 2 more answers
Write the balanced reaction using the fewest whole number coefficients to describe the reaction between gaseous hydrogen and gas
Anastasy [175]

<u>Answer:</u> The percentage yield of water is 9.5 %

<u>Explanation:</u>

We are given:

Moles of hydrogen = 14 moles

Moles of oxygen = 10 moles

The chemical equation for the formation of water from hydrogen and oxygen follows:

2H_2+O_2\rightarrow 2H_2O

By Stoichiometry of the reaction:

2 moles of hydrogen gas reacts with 1 mole of oxygen gas

So, 14 moles of hydrogen gas will react with = \frac{1}{2}\times 14=7mol of oxygen gas

As, given amount of oxygen gas is more than the required amount. So, it is considered as an excess reagent

Thus, hydrogen gas is considered as a limiting reagent because it limits the formation of product.

By Stoichiometry of the reaction:

2 moles of hydrogen gas produces 2 moles of water

So, 14 moles of hydrogen gas will produce = \frac{1}{2}\times 14=7mol of water

To calculate the percentage yield of water, we use the equation:

\%\text{ yield}=\frac{\text{Experimental yield}}{\text{Theoretical yield}}\times 100

Experimental yield of water = 1.33 moles

Theoretical yield of water = 14 moles

Putting values in above equation, we get:

\%\text{ yield of water}=\frac{1.33mol}{14mol}\times 100\\\\\% \text{yield of water}=9.5\%

Hence, the percent yield of the water is 9.5 %.

7 0
3 years ago
How do sedimentary rocks form on the Hawaiian Islands?
Zepler [3.9K]

Answer: I think they form on the Hawaiian islands because of the volcano.

Explanation: The heat may help them form,hope this helps.

8 0
2 years ago
Read 2 more answers
Which of the following is considered a transition metal?
tatyana61 [14]
Sodium is considered to be a transitional metal
4 0
3 years ago
Read 2 more answers
If a chemical reaction goes to completion, what can we say about the equilibrium constant for that reaction?
aniked [119]

Answer:

A. The equilibrium constant is very large

Explanation:

The equilibrium constant value is the ratio of the concentrations of the products over the reactants. When a chemical reaction goes to completion, that means that all the reactant has turned into products. As the equilibrium constant defines, it is the ratio of the product to the reactant. So at the final stage of the chemical reaction, the equilibrium constant will be very large.

7 0
3 years ago
Other questions:
  • How would decreasing the volume of the reaction vessel affect each of the following equilibria? 2NOBr(g) --&gt; 2NO(g)+Br2(g)
    5·1 answer
  • Plzzz fastttt answerrr
    10·1 answer
  • A person uses 770 kcal on a long hike. Calculate the energy used for the hike in each of the following energy units.
    9·1 answer
  • A sample is found to contain 57.2 % N a H C O 3 NaHCOX3 by mass. What is the mass of NaHCO 3 in 4.25 g of the sample
    15·1 answer
  • In a simple model of a neutral magnesium atom with the elements most common mass number. What must happen to an atom of magnesiu
    6·1 answer
  • How many of each type of atom should react so that the electrons
    12·1 answer
  • In the Fischer esterification reaction, a carboxylic acid reacts with an excess of alcohol in acidic conditions to form an ester
    6·1 answer
  • Is #11 balanced or unbalanced?
    11·2 answers
  • Aluminum metal reacts with aqueous nickel(II) sulfate to produce aqueous aluminum sulfate and nickel as a precipitate. In this r
    13·1 answer
  • Coffe is a solution of organic substance in water
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!