3 years ago

What’s the answer???

Chemistry

2 answers:

Ira Lisetskai [31]3 years ago

8 0

Answer:

Well I know that the first one is true.

Explanation:

patriot [66]3 years ago

3 0

Answer:

1. TRUE

2. FALSE

3. C

Explanation:

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Sodium hydroxide + sulfuric acid

trasher [3.6K]

Answer:

NaOH + H2SO4 ‐‐> 2H2O + Na2SO4;

4 0

3 years ago

Read 2 more answers

A car with a mass of 1,200 kilograms is moving around a circular curve at a uniform velocity of 20 meters per second. The centri

Helga [31]

The answer is 80 m.

Centripetal force (F) is a force that makes body move around a circular curve. The unit of force is N (N = kg * m/s²).
It can be represented as:
$F= \frac{m* v^{2} }{r}$
where:
m - mass
v - velocity
r - radius of the curve

We have:
m = 1,200 kg
V = 20 m/s
F = 6,000 N = 6,000 kg * m/s²

We need radius of the curve:
r = ?

So, if <span> $F= \frac{m* v^{2} }{r}$ , then:
</span> $r= \frac{3* v^{2} }{F}$
⇒ $r = \frac{1200 kg * (20m/s)^{2} }{6000 kg*m/s^{2} }$
⇒ $r= \frac{1200*400*kg*m^{2}*s^{2} }{6000kg*m/s^{2} }$
⇒ $r= \frac{480,000m}{6000}$
⇒ $r=80m$

6 0

4 years ago

Please help me with this work

Dominik [7]

I don’t know how , what class is it for?

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3 years ago

Copper wire is used in electrical wiring because the metallic bonding between the atoms aids with the ___________ of the materia

Darya [45]

electrons can move freely through the material

7 0

3 years ago

How many grams of Sodium metal are required to completely react with 100 g of Magnesium chloride hexahydrate in a single replace

slava [35]

Answer:

MgCl2 - 6H2O

203.3 mol

MgCl2 + 2Na = 2NaCl + Mg

22.6g

Explanation:

1. Write the formula of hydrate and find molar mass.

2. Write a balanced single replacement (don't include H2O)

3. Do the given/wanted calculation (include H2O in molar mass of given)

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3 years ago