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
EastWind [94]
3 years ago
7

If there is a total of 100J of

Chemistry
1 answer:
likoan [24]3 years ago
6 0

Answer:

60j because 100-60=40j

You might be interested in
If the family decreases the clothing budget by 3 percent, what amount will it have to spend on clothing? Round to the nearest do
Contact [7]
What is there initial budget? and then take that and multiply by .3 and the. subtract that number from the original budget and you get your answer
5 0
3 years ago
2.<br><br> Question: How much water is best for a pea plant to grow?
snow_lady [41]

Answer:

Explanation:

Growing Peas

Planting depth should be roughly 2 inches with a spacing of about 2 inches apart. Water well at planting and provide at least 1 inch of water per week, particularly during the flowering and pod production stages. As the temperature rises, the vines may need to be deeply watered almost every day.

Make sure to moniter it and change the water depending on how dry or overwatered it looks like. :)

4 0
3 years ago
Describe how oxidation and reduction involve electrons, change oxidation numbers, and combine in oxidation reduction reactions
borishaifa [10]

Answer: Oxidation is defined as the reaction in which there is loss of electrons. It is accompanied by increase in oxidation number.

Zn\rightarrow Zn^{2+}+2e^{-}

Zinc in solid state has oxidation number of zero and on losing electrons changes to Zn^{2+} with oxidation number of +2.

Reduction is defined as the reaction in which there is gain of electrons. It  is accompanied by decrease in oxidation number.

2H^++e^{-}\rightarrow H_2

Hydrogen ions with +1 oxidation state gains electrons and converts to molecular hydrogen with oxidation state of zero.

In the given redox reaction, both oxidation and reduction takes place. They go hand in hand.

Zn+H_2SO_4\rightarrow ZnSO_4 +H_2

Zinc converts to Zn^{2+} and gets oxidized. H^+ gains electron and convert to H_2.




4 0
3 years ago
What is the net ionic equation for the reaction of solid iron with aqueous copper sulfate? (Hint: First use the activity series
ASHA 777 [7]
For the answer to the question above,
The re<span>action of solid iron with aqueous copper sulfate is an example of a single displacement type of reaction which exchanges only the cations of the element and the compound. In this case, the equation is 

Fe (s) + CuSO4 (aq) = FeSO4 + Cu (s) </span>
6 0
3 years ago
Read 2 more answers
A sample in the lab is found to contain 0.450 g magnesium and 2.95 g bromine. what is the empirical formula of the sample?
Rasek [7]
We need to find the number of moles that each of the given substances. The molar mass of magnesium is 24.3 g/mol and Bromine has a molar mass of 79.90 g/mol. From the given mass of each species, the moles of Mg and Br are 0.018 and 0.369 respectively. There are 2 Br in one Mg. The sample is MgBr2. 
3 0
3 years ago
Read 2 more answers
Other questions:
  • A) Calculate the average density of the following object (assume it is a perfect sphere). SHOW ALL YOUR WORK (formulas used, num
    15·1 answer
  • Can science be disproven by philosophy or religion
    15·1 answer
  • The double bond between a carbon atom and two oxygen atoms (a molecule of carbon dioxide) has two characteristics. what are they
    10·2 answers
  • Do you expect the ionization energies of anions of group 17 elements to be lower than, higher than, or about the same for neutra
    13·1 answer
  • What is the Lewis structure for NbBr5
    14·1 answer
  • the atomic mass of an element is A. the amount of electrons the element has B. the number of neutrons an element has C. the numb
    13·1 answer
  • Plssss help————&gt;An object thats (A. Negatively, B. Neutrally, C. Positively) charged has more electrons than protons. An obje
    13·1 answer
  • What forces typically hold ionic solids together?
    5·1 answer
  • How many grams of oxygen can be obtained from 250. grams of KCIO3?
    13·1 answer
  • The two reactions illustrated in the diagrams below often occur when a foreign substance enters the body.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!