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madam [21]
3 years ago
15

Identify the environmental factor that caused the change in gene expression in the previous question. *

Chemistry
2 answers:
Lera25 [3.4K]3 years ago
7 0
I don’t really understand stand it can you make it more specific
Arlecino [84]3 years ago
5 0
It depends what Is the previous question
You might be interested in
The compound magnesium phosphate has the chemical formula Mg3(PO4)2. In this compound, phosphorous and oxygen act together as on
Lapatulllka [165]

Answer:

The 2 in the formula means that, there are 2 phosphate anions that forms the salt.

Explanation:

Magnesium phosphate is a ionic salt.

The formula indicates that 3 moles of Mg and 2 moles of anion phosphate are contained in 1 mol of compound.

3Mg²⁺ + 2PO₄⁻³  →  Mg₃(PO₄)₂

The phosphate anion comes from phosphoric acid and it is generated when the acid loses the 3 protons.

H₃PO₄  →  3H⁺  + PO₄⁻³

Phosphate has a negative charge of -3, so when it bond to magnesium, which has a charge of +2, there must be 3 magnesium and 2 phosphate to make a global charge +6 -6 in the ions

6 0
4 years ago
How do you convert moles to grams?
aniked [119]
Mole is mass (g) / Molar mass (mole/gram)

So to find mass in gram multiply the no.mole by Molar mass
7 0
3 years ago
Read 2 more answers
Approximately how many formula units of Co2(HPO4)3 are found in 175. g of hydrogenphosphate ion?
marshall27 [118]

Answer:

This question lacks options, the options are:

A. 2.89 x 1022

B. 8.66 x 1022

C. 3.66 x 1023

D. 1.10 x 1024

E. 3.29 x 1024

The answer is C. 3.66 × 10^23

Explanation:

In the chemical compound given as follows: Co2(HPO4)3, hydrogenphosphate ion is (HPO4)3.

Number of moles of hydrogenphosphate ion can be calculated using the formula

mole (n) = mass (m) /molar mass (MM)

Molar mass of (HPO4)3;

{1 + 31 + 16(4)}3

= {32 + 64)3

= (96)3

= 288g/mol

mole = 175/288

mole = 0.6076

mole = 0.607mol

The formula of units of hydrogenphosphate ion can be calculated by multiplying number of moles by Avogadro's number (6.022 × 10²³)

6.022 × 10²³ × 0.607

= 3.655 × 10²³

= 3.66 × 10²³

4 0
3 years ago
I WILL GIVE BRAINLIEST!! BE FAST PLEASE ANSWER AND EXTRA POINTS!!!!!!<br> 15 POINTSS
Ivanshal [37]

Answer:

B

Explanation:

3 0
4 years ago
Read 2 more answers
it takes 60 days for 1024 grams of element XY to decay to 32 grams. what is the half life of element XY
KonstantinChe [14]

Answer:

The half life of element XY is 12 days

Explanation:

Given:

Time taken for  1024 grams to decay into 32 grams  = 60 days

To Find:

The half life of element XY = ?

Solution:

The Half life is calculated by

N = N_0 (\frac{1}{2})^{\frac{t}{t_{\frac{1}{2}}}

t_{\frac{1}{2}} =\frac{t}{log_{\frac{1}{2}}( \frac{N(t)}{N_0})}}

Substituting the values,

t_{\frac{1}{2}} =\frac{60}{log_{\frac{1}{2}}( \frac{32}{1024})}}

t_{\frac{1}{2}} =\frac{60}{log_{\frac{1}{2}}(0.03125)}}

t_{\frac{1}{2}} =\frac{60}{5}

t_{\frac{1}{2}} = 12

5 0
3 years ago
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