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Pani-rosa [81]
3 years ago
15

At the end of chemical reactions, what is the total mass of the reactants compared to the total mass of the product? Explain you

r answer.
Chemistry
2 answers:
allsm [11]3 years ago
7 0

Answer:

!!

Explanation:

The law of conservation of mass states that in a chemical reaction, the total mass of reactants is equal to the total mass of products. ... Because atoms are only rearranged in a chemical reaction, there must be the same number of sodium atoms and chlorine atoms in both the reactants and products.

My name is Ann [436]3 years ago
4 0

Answer:

shur the fuiick stuiipid bgiigtch

Explanation:

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33.1 x 105 <br> What is the scientific notation
Sunny_sXe [5.5K]

Answer:

3475.5 or 6591/2

Explanation:

4 0
4 years ago
Acid indigestion is sometimes neutralized with an antacid such as magnesium hydroxide (Mg(OH)2). What products will be released
Lunna [17]

Answer: d) MgCl_2 and H_2O​

Explanation:

A double displacement reaction is one in which exchange of ions take place. The salts which are soluble in water are designated by symbol (aq) and those which are insoluble in water and remain in solid form are represented by (s) after their chemical formulas.

A neutralization reaction is a double displacement reaction in which an acid reacts with base to produce salt and water. The H^+ ions from water reacts with OH^- ions from base to give water.

2HCl+Mg(OH)_2\rightarrow MgCl_2+2H_2O

Thus products that will be released when the antacid is mixed with the hydrochloric acid in the stomach are MgCl_2 and H_2O​

3 0
3 years ago
how much heat energy is needed to raise the temperature of 78.4g of aluminum from 19.4 degrees c to 98.6 degrees c.
Iteru [2.4K]

 The heat that is needed  to raise the   temperature  of 78.4 g of aluminium from 19.4 °c to 98.6°c  is    5600.77 j

 <u><em>calculation</em></u>

Heat(Q) = mass(M) x  specific heat capacity (C) x change in temperature(ΔT)


where;

Q=?

M = 78. 4 g

C=0.902 j/g/c

ΔT=98.6°c -19.4°c =79.2°c

Q is therefore = 78.4 g  x 0.902 j/g/c  x 79.2°c  =5600.77 j

7 0
3 years ago
Chemitey half equations
shepuryov [24]
Isn't it a because in b at the start of the equation the E in Fe just disappeared
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3 years ago
Suppose a species of snake is living in a certain area. Some of the snakes in the population are black and some are orange. Over
dybincka [34]

Answer:

The black snakes will survive and reproduce while the orange snakes die out.

Explanation:

The orange snakes will be easier to see by their prey and predators, and therefore will die out while the black snakes thrive because of their camouflage.

6 0
3 years ago
Read 2 more answers
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