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Maksim231197 [3]
3 years ago
7

During an experiment, Sandy recorded incorrect observations and measurements. What would be the most

Chemistry
1 answer:
ruslelena [56]3 years ago
3 0
Sandy would reach an incorrect outcome.that's because she will repeat this mistake in the future too.
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Which element has an atom with the greatest tendency to attract electrons in a chemical bond?
slava [35]
Because chlorine has the highest electronegativity among the four, it has the greatest tendency to attract electrons in a chemical bond.

Therefore, (2) chlorine is the best answer.

Hope this helps~
8 0
3 years ago
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You have separate solutions of hcl and h2so4 with the same concentrations in terms of molarity. you wish to neutralize a solutio
Vera_Pavlovna [14]
HCl + NaOH = NaCl + H₂O

H₂SO₄ + 2NaOH = Na₂SO₄ + 2H₂O ⇒ <span>0.5H₂SO₄ + NaOH = 0.5Na₂SO₄ + H₂O

V(HCl)=2V(H₂SO₄)

</span><span>The volume of the hydrochloric acid solution (HCl) is twice as large as the volume of the sulfuric acid solution (H</span>₂SO₄)<span>.
</span>
8 0
3 years ago
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The chemical hazard label indicates the class of hazard. It uses three major color-coded categories: Health (yellow), Flammabili
tresset_1 [31]

Answer: False

Explanation: The chemical hazard label indicates the class of harzard of chemical products. It appears on their Safety Data Sheet (SDS), which contains a lot of informations about these substances.

The chemical hazard label is divided into four colors and which one has a meaning (categorie) connected with a number, like:

Blue: Health hazard - If the chemical is deadly (4), extreme danger (3), hazardous (2), slightly hazardous (1) or a normal material (0).

Red: Fire hazard (flammability) - If the chemical has flash point bellow 73ºF (4), bellow 100ºF (3), above 100ºF not exceeding 200ºF (2), above 200ºF (1) or will not burn (0).

Yellow: Reactivity (it can be related to instability) - If the chemical may detonate (4), shock and heat may detonete it (3), if it can suffer a violent chemical change (2) or unstable if heated (1) or if it is stable (0).

White: Specific hazard - If the chemical is acid (ACID) or alkali (ALK), for example.

7 0
3 years ago
Determine the mass in grams of 3.45 x 10^2 mol Co.
lara [203]

Answer:

molar mass CO = 28.01 g/mol

3.45 x 10^2 x 28.01 =9.66 x 10^3 g

mass Zn = 2.45 x 10^-2 x 65.39 g/mol=1.60 g => 1.60 x 10^0

Explanation:

mark me as brainlest

6 0
3 years ago
State Boyle's, Charles's, and Gay-Lussac's laws using sentences, then equations
dimaraw [331]

Explanation:

1. Boyle's Law states that pressure is inversely proportional to the volume of the gas at constant temperature and number of moles.

P\propto \frac{1}{V}      (At constant temperature and number of moles)

P_1\times {V_1}=P_2\times V_2

2. Charles' Law states that volume is directly proportional to the temperature of the gas at constant pressure and number of moles.

V\propto T    (At constant pressure and number of moles

\frac{V_1}{T_1}=\frac{V_2}{T_2}

3. Gay Lussac's Law states that tempertaure is directly proportional to the pressure of the gas at constant volume and number of moles of gas

P\propto T    (At constant volume and number of moles)

\frac{V_1}{n_1}=\frac{V_2}{n_2}

7 0
3 years ago
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