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3 years ago

PLEASE HELP ASAP! AND PLEASE DO NOT GIVE ME ANY VIRUSES!

Chemistry

1 answer:

loris [4]3 years ago

6 0

Answer:

In this situation

The limiting factors for spider has increased

As The flowers has increased the amount of the insects

And insects are the food of dpiders so spider made their homes there.

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A solution of NaOH is titrated with H2SO4. It is found that 20.05 mL of 0.3564 M H2SO4 solution is equivalent to 43.42 mL of NaO

Darya [45]

Answer : The concentration of NaOH is, 0.336 M

Explanation:

To calculate the concentration of base, we use the equation given by neutralization reaction:

$n_1M_1V_1=n_2M_2V_2$

where,

$n_1,M_1\text{ and }V_1$ are the n-factor, molarity and volume of acid which is $H_2SO_4$

$n_2,M_2\text{ and }V_2$ are the n-factor, molarity and volume of base which is NaOH.

We are given:

$n_1=2\\M_1=0.3564M\\V_1=20.05mL\\n_2=1\\M_2=?\\V_2=43.42mL$

Putting values in above equation, we get:

$2\times 0.3564M\times 20.05mL=1\times M_2\times 43.42mL$

$M_2=0.336M$

Thus, the concentration of NaOH is, 0.336 M

3 0

4 years ago

Phóng xạ và phân hạch hạt nhân

mario62 [17]

I am from Nepal i don't know this language

6 0

3 years ago

Sodium bicarbonate (NaHCO3) is commercially known as baking soda. How many grams and atoms of oxygen are there in 15 grams of so

ella [17]

Answer:

3 atoms of O

8.57g

Explanation:

The problem here is to find the mass of oxygen in the compound and the number of atoms of oxygen.

The formula of the compound is:

NaHCO₃;

Here we have:

1 atom of Na

1 atom of H

1 atom of C

3 atoms of O

So there are 3 atoms of O

To find the mass of oxygen , we use the molar mass of oxygen;

Molar mass of oxygen = 16g/mol

Mass of oxygen = $\frac{3(16)}{84.01}$ x 15 = 8.57g

4 0

3 years ago

An alpha particle is also referred to as a nucleus of

Crank

It is 2 because you just gotta dab on dem haters

5 0

3 years ago

Which of the following means using specific observations to make generalizations

Keith_Richards [23]

The answer is inductive reasoning.

Using specific observations to make generalizations means inductive reasoning.

Inductive reasoning is opposite to deductive reasoning, it makes generalization from specific observations. Generalization is done from specific set of observations. After generalization, conclusions are drawn from the data. Inductive reasoning has its place in scientific method.

3 0

3 years ago

Read 2 more answers