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sergeinik [125]
3 years ago
14

The food that plants produce during photosynthesis is

Chemistry
1 answer:
Marta_Voda [28]3 years ago
3 0

Answer:

Glucose

Explanation:

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If an ion had a charge of (-3), how many valence electrons could be expected
zimovet [89]

Answer:

Key Points. Ionic bonds are formed through the exchange of valence electrons between atoms, typically a metal and a nonmetal.

Explanation:

7 0
2 years ago
The denser and thicker a liquid is, the higher the buoyancy of an object is. In other words, if the density of a certain fluid i
Marta_Voda [28]

Answer:

Yes this is true.

Explanation:

3 0
2 years ago
Water will melt faster on a very cold soft drink can than it will on a cool soft drink is this physical or chemical change?
Margarita [4]
I believe its chemical change


hope this helps
7 0
3 years ago
Read 2 more answers
When can all the coefficients in a balanced equation represent volume ratios? when reactants and products are solids at stp when
Alexxx [7]

Answer: when reactants and products are gases at STP.


Justification:


1) STP stands for standard temperature (0°) and pressure (1 atm).


2) According to the kinetic molecular theory of the gases, and as per Avogadro's principle, equal volumes of gases, at the same temperature and pressure, have the same number of molecules.



3) Since the coefficients in a balanced chemical equation represent number of moles, when reactants and products are gases at the same temperature and pressure, the mole ratios are the same that the volume ratios, and then the coefficients of the chemical equation represent the volume ratios.


8 0
3 years ago
Read 2 more answers
Does anyone know the answers for these
Alexeev081 [22]

Answer: 1. 0.045moles

2.  2.10 grams

Explanation:

According to avogadro's law, 1 mole of every substance occupies 22.4 L at STP and contains avogadro's number 6.023\times 10^{23} of particles.

To calculate the moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text {Molar mass}}

1. \text{Number of moles of zinc nitrate}=\frac{8.51g}{189.36g/mol}=0.045moles

2. Mass of C_2H_4=moles\times {\text {Molar mass}}=0.075moles\times 28.05g/mol=2.10g

4 0
2 years ago
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