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
Pavlova-9 [17]
3 years ago
11

Why carbon dioxide can be tested with the help of moist blue litmus paper ?​

Chemistry
1 answer:
Evgesh-ka [11]3 years ago
4 0

Answer:

carbon dioxide is acidic and when it comes in contact with blue litmus paper it turns red

Explanation:

You might be interested in
An electric wire produces a magnetic field. <br><br><br> True or false? (GIVE PROOF)
kupik [55]

Answer:

True

Explanation:

A magnetic field is made when an electric current flows through a wire.

3 0
3 years ago
Find the number of cations present in 7g of sodium prosphate Na=23 g/mol O=16g/mol P=31g/mol​
Snowcat [4.5K]

Answer:    This contains magnesium, Mg2+, and hydroxide, OH–

, ions. Each magnesium ion is +2 and

each hydroxide ion is -1: two -1 ions are needed for one +2 ion, and the formula for magnesium

hydroxide is Mg(OH)2. The (OH)2 indicates there are two OH–

ions. In a formula unit of

Mg(OH)2, there are one magnesium ion and two hydroxide ions; or one magnesium, two

oxygen, and two hydrogen atoms. The subscript multiplies everything in ( )

hope that helped!!

3 0
3 years ago
How many kJ of heat are released by the reaction of 25.0 g of Na2O2(s) in the following reaction? (M = 78.0 g/mol for Na2O2)
solong [7]

-20.16 KJ of heat are released by the reaction of 25.0 g of Na2O2.

Explanation:

Given:

mass of Na2O2 = 25 grams

atomic mass of Na2O2 = 78 gram/mole

number of mole = \frac{mass}{atomic mass of 1 mole}

                          = \frac{25}{78}

                          =0. 32 moles

The balanced equation for the reaction:

2 Na2O2(s) + 2 H2O(l) → 4 NaOH(aq) + O2(g) ∆Hο = −126 kJ

It can be seen that 126 KJ of energy is released when 2 moles of Na2O2 undergoes reaction.

similarly 0.3 moles of Na2O2 on reaction would give:

\frac{126}{2} = \frac{x}{0.32}

x = \frac{126 x 0.32}{2}

 = -20.16 KJ

Thus, - 20.16 KJ of energy will be released.

6 0
4 years ago
M CALCULATOR
dolphi86 [110]
Could you post another question with a photo? I am sorry...
6 0
3 years ago
Necesito saber esto porfavor, ¿ cuales son las ventajas que representan los espectroscopia en cuanto al estudio de los elementos
igomit [66]

Answer:

Por favor,no ponga exactamente lo que pongo,Trate de parafrasear.

La espectroscopia es el estudio de la interacción entre la materia y la radiación electromagnética en función de la longitud de onda o frecuencia de la radiación. La espectroscopia puede ser muy útil para ayudar a los científicos a comprender cómo un objeto como un agujero negro, una estrella de neutrones o una galaxia activa produce luz, qué tan rápido se mueve y de qué elementos está compuesto. Se pueden producir espectros para cualquier energía de la luz, desde ondas de radio de baja energía hasta rayos gamma de muy alta energía.

Responde a esta pregunta?

5 0
3 years ago
Other questions:
  • How does thermal energy transfer when a room is heated by a furnace?
    14·2 answers
  • Identify the compound whose solubility decreases with increasing temperature.
    6·1 answer
  • Consider a hypothetical element x that consists of two isotopes, one with a mass of 41.99998 amu and the other with a mass of 44
    11·1 answer
  • What would happen to the population of rabbits,if the population of foxes increased?
    13·1 answer
  • Calculate the number of atoms of copper represented by 127.08 g of copper. 1. 1.20 × 1024 atoms 2. 2.00 atoms 3. 1.30 × 1024 ato
    5·2 answers
  • (b) The mass of a single molybdenum atom is 1.59×10-22 g. Suppose enough Mo atoms were lined up like beads on a string to span a
    7·1 answer
  • A sample of grape juice has a hydroxide ion concentration of 1.4 × 10-10 M
    15·2 answers
  • A student conducts an experiment to see how music affects plant growth. The student obtains four identical plants. Each one is p
    7·1 answer
  • __________ is required to make a wave.
    5·1 answer
  • In which of the three acid-base concepts can water be a product of an acid-base reaction? In which is it the only product?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!