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2 years ago

Why does the phase of the moon affect tides

Chemistry

1 answer:

Maksim231197 [3]2 years ago

6 0

It's because of the gravitational forces

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Which is bigger, a table salt molecule or salt molecule?

alexandr1967 [171]

Answer:

A table salt molecule is bigger than a salt molecule.

Explanation:

I'm saying this because it's a table salt and salt could be much smaller and table salt could be bigger.

6 0

3 years ago

Once of the skills necessary for this experiment is dilution. If you have 1.95 mL of .806 M bleach, what will be the new concent

aleksley [76]

<u>Answer:</u> The concentration of diluted bleach solution is 0.0157 M

<u>Explanation:</u>

To calculate the molarity of the diluted solution, we use the equation:

$M_1V_1=M_2V_2$

where,

$M_1\text{ and }V_1$ are the molarity and volume of the concentrated bleach solution

$M_2\text{ and }V_2$ are the molarity and volume of diluted bleach solution

We are given:

$M_1=0.806M\\V_1=1.95mL\\M_2=?M\\V_2=100mL$

Putting values in above equation, we get:

$0.806\times 1.95=M_2\times 100\\\\M_2=\frac{0.806\times 1.95}{100}=0.0157M$

Hence, the concentration of diluted bleach solution is 0.0157 M

6 0

3 years ago

Which statement is true about sodium hydroxide (NaOH)? It is a salt because it increases the concentration of metallic ions. It

Korolek [52]

Well you see its part sodium and sodium is another word for salt so It is a salt because it is formed by the reaction of an acid and a base

5 0

2 years ago

Read 2 more answers

The density of aluminum is 2.7 g.ml. what is the volume of 16.2 grams? HELP

lbvjy [14]

Answer:

The answer is

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

$volume = \frac{mass}{density}$

From the question

density = 2.7 g/mL

mass of aluminum = 16.2 g

The volume is

$volume = \frac{16.2}{2.7}$

We have the final answer as

Hope this helps you

3 0

3 years ago

Which of the following displays the correct change in enthalpy and best describes the reaction below? 2CsCl(aq) + Na2SO4(aq) 2Na

Bond [772]

We subtract the enthalpies of the reactants from that of the products:
$2\Delta
 H(NaCl)+\Delta H(Cs_2 SO_4)-2\Delta H(CsCl)-\Delta H(Na_2 SO_4) \\ 
=2(-411)+(-1400) -2(-415)-(-1380) \\ = -12 kJ$
Since this is < 0, this is an exothermic reaction.

3 0

2 years ago