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finlep [7]
4 years ago
12

Each student in Ms. Major's class was given an unknown substance. Ms. Major gave her students a list, shown below, of substances

and their properties to help them identify their unknown.
Substance Density Boiling Point Appearance
Water 1.0 g/mL 100°C colorless liquid
Ethanol 0.789 g/mL 78.4°C colorless liquid
Sodium Hydroxide 2.13 g/mL 1388°C white solid
Phosphoric Acid 1.685 g/mL 158°C white solid or colorless liquid


If a student's unknown is a white solid and its density was calculated to be about 1.7 g/mL, it is most likely _______.
Chemistry
2 answers:
soldi70 [24.7K]4 years ago
7 0

Answer;

Water 1.0 g/mL 100°C colorless liquid

Explanation:

thats the answer

juin [17]4 years ago
7 0

Answer:

ethanol

Explanation:

just did it in study island

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Determine the percent composition of phosphorous in calcium phosphate
scoundrel [369]

40% because of ionic charges.

7 0
3 years ago
given two equations representing reactions: which type of reaction is represented by each of these equations?
Sergeeva-Olga [200]

Answer:

Equation 1 - nuclear fission

Equation 2 - nuclear fusion

Explanation:

Nuclear fission is a reaction in which a large nucleus is split into smaller nuclei when it is bombarded by neutrons. The process produces more neutrons to continue the chain reaction. This is clearly depicted in equation 1 as shown in the question.

Nuclear fusion is a reaction in which two light nuclei combine in order to form a larger nuclei. This is clearly depicted in equation 2 as shown in the question.

7 0
3 years ago
What stress will shift the following equilibrium system to the left? N2(g) + 3H2(g) ⇌ 2NH3(g)
oee [108]
<h3><u>Answer;</u></h3>

Decrease in pressure

<h3><u>Explanation;</u></h3>
  • If the pressure of a system is increased, the reaction will shift toward the side with fewer moles of gas, whereas when the pressure of a system is decreased, the reaction will shift toward the side with more moles of gas.
  • In this case; <em><u>If the pressure of the system with the above reaction decreases, the reaction will shift to the left. The reactants side has more moles of gas, so the reaction will shift toward the direction of the reactants.</u></em>
5 0
3 years ago
Silver chloride, often used in silver plating, contains 75.27% ag. part a calculate the mass of silver chloride required to plat
Ugo [173]
<span>179.35 mg of silver chloride is required to plate 135 mg of silver. Create an expression showing what you know. Namely that 75.27% of X is equal to 135. So we get 75.27% X = 135 0.7527 X = 135 Now divide both sides by 0.7527 X = 135 mg / 0.7527 = 179.3543 mg So it will take 179.35 mg of silver chloride to plate out 135 mg of pure silver.</span>
6 0
4 years ago
Help!!
shtirl [24]

Answer:

a solid in a gas

Explaination:

because soild will take a long while to dissolve into liquid by heating the soild with gas it will disslove quicker

5 0
3 years ago
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