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3 years ago

A genetic mutation is always observable in an organism physical appearance True or false

Chemistry

1 answer:

ale4655 [162]3 years ago

4 0

Answer:

false

Explanation:

false, only a small percentage of mutations cause genetic disorders—most have no impact on health or development. For example, some mutations alter a gene's DNA sequence but do not change the function of the protein made by the gene.

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How many grams of NaF form when 0.589 mol of HF react with excess Na2SiO3?

BartSMP [9]

Answer:

6.18 g

Explanation:

We know we will need a balanced equation with masses, moles, and molar masses, so let’s gather all the information in one place.

$M_r$ : 41.99

Na₂SiO₃ + 8HF ⟶ 2NaF + H₂SiF₆ + 3H₂O

<em>n</em>/mol: 0.58

1. Use the molar ratio of NaF:HF to calculate the moles of NaF.

$\text{Moles of NaF} = \text{0.589 mol HF} \times \frac{\text{2 mol NaF}}{\text{8 mol HF}} = \text{0.1472 mol NaF}$

2. Use the molar mass of NaF to calculate the mass of NaF.

$\text{Mass of NaF} = \text{0.1472 mol NaF} \times \frac{\text{41.99 g NaF}}{\text{1 mol NaF}} = \text{6.18 g NaF}$

8 0

3 years ago

What is photosynthesis? Please help..QUICKLY PLEASE, 15 Points!

NARA [144]

Photosynthsis is a process that a plant goes through to turn sugars into energy

4 0

3 years ago

Which conversion factor do you use first to calculate the number of grams of CO2 produced by the reaction of 50.6 g of CH4 with

zlopas [31]

Answer:

This is the conversion factor, we have to use:

44 g / 1mol

Explanation:

The reaction for the methane combustion is:

CH₄ + 2O₂ → CO₂ + 2H₂O

First of all we use this conversion factor to determine the moles of methane, we used.

50.6 g . 1 mol / 16 g = 3.16 mol

So ratio is 1:1, then 3.16 mol of methane will produce 3.16 moles of CO₂

To calculate the grams of produced dioxide:

3.16 mol . 44 g / 1mol = 139.04 g

5 0

3 years ago

When naming a transition metal ion that can have more than one common ionic charage, the numerical value of the chrage is indica

alexandr1967 [171]

The answer is a Roman numeral.
Ex:
1: I
2: II
3: III
4: IV
5: V
6: VI
7: VII
8: VIII
9: IX
10: X

6 0

3 years ago

A 10-gram aluminum cube absorbs 677 joules when its temperature is increased from 50°c to 125°c. what is the specific heat of al

faust18 [17]

What is the specific heat of aluminum?

The specific heat of aluminum is 0.90J/g°C.

Given:

Heat absorbs = 677 J

Mass of the substance = 10 g

Initial temperature = 50°C

Final temperature = 125°C

Formula used:

Q = m x c x ΔT

which can also be written as,

Q = m x c x ( $T_{final}$ - $T_{initial}$ )

where,

Q = heat absorbs

m = mass of a substance

c = heat capacity of aluminum

$T_{final}$ = Final temperature

$T_{initial}$ = Initial temperature

Now, put all the values in the formula given above to get the specific heat of aluminum,

677g = (10g) x c x (125 - 50)°C

c = 0.9026 J/g°C

c = 0.90 J/g°C

Learn more about the specific heat of aluminum here,

brainly.com/question/13696634

#SPJ4

7 0

2 years ago