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
Morgarella [4.7K]
4 years ago
7

Please Answer, thank you so much!

Chemistry
1 answer:
alexandr402 [8]4 years ago
3 0
I think it is the first one
You might be interested in
PLEASE HELP??<br> Describe how the periodic table differentiates between metals and nonmetals.
Dovator [93]
Metals are the majority of the periodic table. Also, they are on the left side of the periodic table. The no metals are on the right side of periodic table.
Hope I Helped!
4 0
3 years ago
Fluorine gas is placed in contact with calcium metal at high temperatures to produce calcium fluoride powder. What is the formul
Rudik [331]
F₂(g) + Ca(s) → CaF₂(s)
5 0
4 years ago
Read 2 more answers
Ethanol (C2H5OH) is produced from the fermentation of sucrose in the presence of enzymes.
Klio2033 [76]

Explanation:

to calculate theoratical yield...first we must calculate how much Sucrose moles we have..in order to to do so...we must calculate molar mass of sucrose.

molar mass of sucrose is 342.3 g/mol.

now we can calculate how many sucrose moles we have by dividing the mass with molar mass of sucrose

735g/(342.3g/mol)=2.147mol

theoratically...according to stoichiometry..every 1 mole of sucrose yields 4 moles of ethanol...so...

2.147mole yield 2.147*4mol=8.588mol

now we must calculate weight of that much ethanol..molar mass of ethanol is 46.07 g/mol...

so we can multiple moles by molar mass to obtain the weight 8.588mol*46.07g/mol=395.649g

but we only obtained 310.5g...so percentage we have is

\frac{310.5}{395.649}  \times 100

78.47%

if there is trouble with molar mases I used....use what you calculated...

If my explanation is good enough...please mark it as brainliest.thanks

5 0
3 years ago
Is heterogeneous a mineral
Dvinal [7]
                       NOT MY WORDS TAKEN FROM A SOURCE!!!!

Any naturally occurring homogeneous solid that has a definite (but not fixed) chemical composition and a distinctive internal crystal structure. 

Minerals are usually formed by inorganic processes. 

Synthetic equivalents of various minerals, such as emeralds and diamonds, are manufactured for commercial purposes. 

Although most minerals are chemical compounds, a small number (e.g., sulfur, copper, gold) are elements. 

Minerals combine with each other to form rocks. 

For example, granite consists of the minerals feldspar, quartz, mica, and amphibole in varying amounts. 

Rocks are generally, therefore, an intergrowth of various minerals.<span> </span>


Hope this helps!


:)
6 0
4 years ago
How many protons electrons and neutrons does the following isotopes contain 1H+
Rus_ich [418]

Answer: 1 proton, 0 electron and 1 neutron are present in 1 H⁺ isotope.

8 0
3 years ago
Other questions:
  • The valency of metal 'm' 1+. give the formula of its oxide​
    13·1 answer
  • What kind of charge does a cation have
    11·2 answers
  • Sulfur reacts with oxygen to produce sulfur trioxide gas. Balance the equation. __S + __O2 ----&gt; __SO3
    6·1 answer
  • what volume of a 0.149 m potassium hydroxide solution is required to neutralize 17.0 ml of a 0.112 m hydrobromic acid solution?
    15·1 answer
  • The difference between liquid triglycerides and solid triglycerides is in __________.
    13·1 answer
  • Describe the two main differences between meisosis and mitosis
    6·1 answer
  • PLEASE HELP ME!
    7·1 answer
  • NEED HELP ASAP PLS! WOULD REALLY APPRECIATE IT! THANK YOU!
    15·1 answer
  • Describe one function of your body and how it maintains homeostasis
    9·1 answer
  • It base please you guys
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!