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
Arturiano [62]
3 years ago
13

True or false All chemical symbols have one letter.

Chemistry
1 answer:
rusak2 [61]3 years ago
6 0

Answer:

This is a false claim. All chemical symbols range from a singular to two letters. A prime example of this is <em>cobalt</em>;<em> </em>its chemical symbol is Co.

You might be interested in
Embryos have the genes of
REY [17]

Answer:

gggggggg

Explanation:

4 0
3 years ago
Read 2 more answers
What is the name for the prevailing global wind pattern that comes from the poles and blows from east to west?
Fittoniya [83]

Answer: Trade winds :)

Explanation: just took the test

7 0
3 years ago
Indicate the number of significant figures in the measured number 0.0020 <br> A. 4<br> B. 5<br> C. 2
Sergio [31]

<u>Answer:</u>

The correct answer option is C. 2.

<u>Explanation:</u>

We are given the number '0.0020' and we are to indicate the number of significant figures in the given measured number.

According to the rules of significant figures, numbers that are non-zero, zeros between any two significant numbers and the ending zeros in the decimal position are categorized as significant figures.

Since there is one non-zero number and one ending zero in the decimal position, therefore 0.0020 has 2 significant figures.

6 0
3 years ago
Coal containing 15.0% H2O, 2.0% S and 83.0% C by mass is burnt with the stoichiometric amount of air in a furnace. What is the m
devlian [24]

Answer:

This is a coal combustion process and we will assume

Inlet coal amount = 100kg

It means that there are

15kg of H2O, 2kg of Sulphur and 83kg of Carbon

Now to find the mole fraction of SO2(g) in the exhaust?

Molar mass of S = 32kg/kmol

Initial moles n  of S = 2/32 = 0.0625kmols

Reaction:  S + O₂ = SO₂

That is 1 mole of S reacts with 1 mole of O₂ to give 1 mole of SO₂

Then, it means for 0.0625 kmoles of S, we will have 0.0625 kmole of SO2 coming out of the exhaust

The mole fraction of SO2(g) in the exhaust=0.0625kmols

Explanation:

5 0
3 years ago
¿que se necesita para escribir un informe de experimento? Plis ​
Ludmilka [50]

Answer:

Explanation:

Introducción. Dentro de la introducción, el investigador limita el estudio. Muestra los datos generales importantes y...

Hipótesis. La hipótesis consiste en una apreciación que el investigador hace en torno al problema. Se define como una...

Objetivos. Los objetivos de un estudio son los movimientos que se deben hacer para solucionar el

4 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following is a nonmetallic mineral resource?. A. wood . B. iron . C. coal . D. aggregate
    11·2 answers
  • What is the wavelength of radiation with a frequency of 6.24 x 10 Hertz?
    6·1 answer
  • What are three differnt shapes or structures of a carbon based molecules?
    13·1 answer
  • You add 50.0 g of ice initially at ‒20.0 °C to 1.00 x 102 mL warm water at 67.0 °C. When all the ice melts, the water temperatur
    9·1 answer
  • Rhett is solving the quadratic equation 0= x2 – 2x – 3 using the quadratic formula. Which shows the correct substitution of the
    12·1 answer
  • Sodium metal reacts with chlorine gas in a combination reaction. Write a balanced equation to describe this reaction. Click in t
    5·1 answer
  • When a calcium atom forms an ion, it loses two electrons. what is the eletrical charge ofbthe calcium ion?
    9·2 answers
  • 14. The noble gases in Group 18 are very reactive. *<br> O True<br> O False
    6·1 answer
  • Which fossil fuel is the most abundant in the United States?
    12·2 answers
  • What is the name of the compound with the chemical formula Ti2(SO 4 )3
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!