All categories

3 years ago

Pls anwser (you don’t have to anwser all of them) heeelllpppp

Chemistry

2 answers:

olganol [36]3 years ago

5 0

Answer:

animals cant become a newer animal not possible

Explanation:

alex41 [277]3 years ago

4 0

Hi! For the first question: this isn’t true. It can’t be done. Animals can’t evolve from other animals.

You might be interested in

Which would most easily form negative one ions.

irinina [24]

Answer:

Explanation:

chlorine (2,8,7) is a non metal with highest electronegativity. Hence, it is most likely to form a negative ion with charge −1.

I hope it helps you

8 0

3 years ago

A 20.00-mL sample of a weak base is titrated with 0.0568 M HCl. At the endpoint, it is found that 17.88 mL of titrant was used.

nata0808 [166]

Answer: 0.0508mL

Explanation: Using the basic formula that states: C acid * V acid = C base * V base. we have:0.568 * 17.88 = 20 * C base.

therefore concentration of the base is 1.0156/20 = 0.0508 mL

7 0

3 years ago

This is actually science but anyways my teacher didn't explain much can someone help?

zepelin [54]

TT homo
Tt hetero
tt homo

5 0

3 years ago

CALCULATOR

suter [353]

Answer: The possible molecular formula will be $CO_2$

Explanation:

Mass of C= 27.3 g

Mass of O = 72.7 g

Step 1 : convert given masses into moles.

Moles of C = $\frac{\text{ given mass of C}}{\text{ molar mass of C}}= \frac{27.3g}{12g/mole}=2.275moles$

Moles of O = $\frac{\text{ given mass of O}}{\text{ molar mass of O}}= \frac{72.7g}{16g/mole}=4.544moles$

Step 2 : For the mole ratio, divide each value of moles by the smallest number of moles calculated.

For C = $\frac{2.275}{2.275}=1$

For O = $\frac{4.544}{2.275}=2$

The ratio of C : O = 1: 2

Hence the empirical formula is $CO_2$

The possible molecular formula will be= $n\times CO_2$

5 0

3 years ago

Which compounds represent the

Firlakuza [10]

Answer:

Both

compounds in left hand side of the equation is called reactants.

compounds in right hand side of the equation is called products.

so ans is both water and carbon di oxide

Explanation:

3 0

2 years ago