All categories

4 years ago

What does an earth scientist study?

Chemistry

2 answers:

TEA [102]4 years ago

8 0

Answer:

Not sure what the specific answer you want is but here's mine..

Earth science or geoscience includes all fields of natural science related to the planet Earth. SO.. They would study how the world works. AN example is natural disasters.

Explanation:

Hope this helps.

LenaWriter [7]4 years ago

5 0

Answer:

Earth science.

Explanation:

Earth science or geoscience includes all fields of natural science related to the planet Earth. ... The Earth sciences can include the study of geology, the lithosphere, and the large-scale structure of the Earth's interior, as well as the atmosphere, hydrosphere, and biosphere.

You might be interested in

Calculate 6890/1230000 and conclude using the correct scientific figure.

Vesnalui [34]

Answer:

5.60162×10^−3

5 0

4 years ago

The half life for the decay of carbon-14 is 5.73 times 10^3 years.

sergeinik [125]

Answer:

790 years

Explanation:

Given that;

0.693/t1/2 = 2.303/t log [A]o/[A]

So;

t1/2 =half life of carbon-14

t= age of the sample

[A]o= activity of the living sampoke

[A] = activity at time t

0.693/5.73 ×10^3 = 2.303/t log 85/77

1.21 × 10^-4 = 2.303/t log 1.1

1.21 × 10^-4 = 0.0953/t

t= 0.0953/1.21 × 10^-4

t= 790 years (to 2sf)

5 0

3 years ago

Is it really healthy to drink a monster? I mean I feel kinda tired rn

MrRissso [65]

Sugar is really high on a monster and it is bad for your health never drink more than 1. Seriously.

8 0

3 years ago

Read 2 more answers

8. Given the balanced chemical equation Br2 + 2 NaI -> 2 NaBr + I2 How many moles of sodium bromide (NaBr) could be produced

bezimeni [28]

Since we are already given the balanced equation:

$Br_{2}+2NaI$ → $NaBr+I_{2}$

We can derive the molar ratios as: 1:2:1:1

That being said, we are given 0.172 moles of bromine ( $Br_{2}$ ), so it has a ratio of 1:1 with sodium bromide ( $NaBr$ ).

So we can take from that ratio, that when 0.172 moles of bromine are used, we are, in turn, going to get 0.172 moles of sodium bromide produced.

4 0

4 years ago

90 POINTSSSS!!!

Katarina [22]

Answer:

$\large \boxed{\text{-2043.96 kJ/mol}}$

Explanation:

Assume the reaction is the combustion of propane.

Word equation: propane plus oxygen produces carbon dioxide and water

Chemical eqn: C₃H₈(g) + O₂(g) ⟶ CO₂(g) + H₂O(g)

Balanced eqn: C₃H₈(g) + 5O₂(g) ⟶ 3CO₂(g) + 4H₂O(g)

(a) Table of enthalpies of formation of reactants and products

$\begin{array}{cc}\textbf{Substance} & \textbf{$\Delta_{\text{f}}$H/(kJ/mol}) \\\text{C$_{3}$H$_{8}$(g)} & -103.85 \\\text{O}_{2}\text{(g)} & 0 \\\text{CO}_{2}\text{(g)} & -393.51 \\\text{H$_{2}$O(g)} & -241.82\\\end{array}$

(b)Total enthalpies of reactants and products

$\Delta_{\text{rxn}}H^{\circ} = \sum \left( \Delta_{\text{f}} H^{\circ} \text{products}\right) - \sum \left (\Delta_{\text{f}}H^{\circ} \text{reactants} \right)\\= \text{-2147.81 kJ/mol - (-103.85 kJ/mol)}\\= \text{-2147.81 kJ/mol + 103.85 kJ/mol}\\= \textbf{-2043.96 kJ/mol}\\\text{The enthalpy change is $\large \boxed{\textbf{-2043.96 kJ/mol}}$}$

ΔᵣH° is negative, so the reaction is exothermic.

5 0

3 years ago