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Leya [2.2K]
3 years ago
14

Choose the most correct statement about metals

Chemistry
2 answers:
stellarik [79]3 years ago
7 0

Answer:

C Metals are ductile, meaning they can be pulled into wires.

Andre45 [30]3 years ago
5 0

Answer: Never mind.

Metals are good conductors of heat and electricity, and are malleable (they can be hammered into sheets) and ductile <u><em>(they can be drawn into wire)</em></u>.

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What is the molarity of a 5.00x10^2 mL solution containing 21.1 g of potassium bromide (KBr)? The molar mass of KBr is 119.0 g/m
Dominik [7]
Volume of solution in liters:

5.00 x 10² mL / 1000 => 0.5 L 

number of moles:

mass of solute / molar mass

21.1 / 119.0 => 0.1773 moles

Molarity = number of moles / volume 

M = 0.1773 / 0.5

M = 0.355 mol/L

Answer C

<span>hope this helps!</span>
5 0
4 years ago
Read 2 more answers
How to get left ventricular end diastolic pressure echo equation?
aliina [53]
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5 0
3 years ago
Which two changes would make this reaction favor the formation of products? 2502 +02= 2503 + energy A. Raising the temperature B
Alisiya [41]

C. Decreasing the temperature

D. Raising the pressure​

<h3>Further explanation</h3>

Given

Reaction

2SO₂+O₂⇔2SO₃+energy

Required

Changes to  the formation of products

Solution

The formation of SO₃ is an exothermic reaction (releases heat)

If the system temperature is raised, then the equilibrium reaction will reduce the temperature by shifting the reaction in the direction that requires heat (endotherms). Conversely, if the temperature is lowered, then the equilibrium shifts to a reaction that releases heat (exothermic)  

While on the change in pressure, then the addition of pressure, the reaction will shift towards a smaller reaction coefficient  

in the above reaction: the number of coefficients on the left is 3 (2 + 1) while the right is 2

As the temperature decreases, the equilibrium will shift towards the exothermic reaction, so the reaction shifts to the right towards SO₃( products-favored)

And increasing the pressure, then the reaction shifts to the right SO₃( products-favored)⇒the number of coefficients is greater

4 0
3 years ago
Read 2 more answers
ILL MARK BRAINLIEST :)
DanielleElmas [232]

Explanation:

According to the law of conservation of mass, mass can neither be created nor destroyed but it can simply be transformed from one form to another.

For example, Na^{+} + Cl^{-} \rightarrow NaCl

Mass of Na = 23 g/mol

Mass of Cl = 35.5 g/mol

Sum of mass of reactants = mass of Na + mass of Cl

= 23 + 35.5 g/mol

= 58.5 g/mol

Mass of product formed is as follows.

Mass of NaCl = mass of Na + mass of Cl

= (23 g/mol + 35.5) g/mol

= 58.5 g/mol

As mass reacted is equal to the amount of mass formed. This shows that mass is conserved.

As a result, law of conservation of mass is obeyed.

3 0
3 years ago
Every day a 6th grade class puts candy into bags to prepare for Valentine's Day. They put
Amiraneli [1.4K]
70 bags is the answer.
They add “They put 7 pieces of candy in each bag to throw you off”
To find the answer just divide 28 bags by 4 days to get how many bags they make in 1 day. Take that number “7” and multiply it by 10 days. The answer is then 70.
7 0
3 years ago
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